These data are made available to the scientific community and public with the understanding that authors of publications and presentations will contact the PI to obtain up-to-date information on the latest version of the data during the early stages of their analysis. Manuscripts that employ these data should be reviewed by the PI before submission to ensure the quality and limitations of the data are represented. Data Disclaimer: Data has undergone extensive quality checks and is available from NOAA-GMD and WDCGG. However, there still exists the potential for these data to be modified at the discretion of NOAA/ESRL Global Monitoring Division. If you have questions regarding the data in this file, please contact: Audra McClure-Begley: Audra.mcclure@noaa.gov (303-497-6823) Please use the following citation for data use: McClure-Begley, A., Petropavlovskikh, I., Oltmans, S., (2014) NOAA Global Monitoring Surface Ozone Network. Station name, Time start-Time end. National Oceanic and Atmospheric Administration, Earth Systems Research Laboratory Global Monitoring Division. Boulder, CO. DATE ACCESSED http://dx.doi.org/10.7289/V57P8WBF STN YEAR MON DAY HR O3(PPB) 31 2011 02 01 00 44.22 31 2011 02 01 01 45.36 31 2011 02 01 02 44.10 31 2011 02 01 03 43.52 31 2011 02 01 04 46.98 31 2011 02 01 05 52.88 31 2011 02 01 06 47.89 31 2011 02 01 07 40.58 31 2011 02 01 08 41.28 31 2011 02 01 09 41.67 31 2011 02 01 10 41.00 31 2011 02 01 11 37.64 31 2011 02 01 12 40.41 31 2011 02 01 13 39.69 31 2011 02 01 14 41.19 31 2011 02 01 15 44.39 31 2011 02 01 16 46.29 31 2011 02 01 17 48.81 31 2011 02 01 18 50.03 31 2011 02 01 19 52.38 31 2011 02 01 20 52.51 31 2011 02 01 21 51.91 31 2011 02 01 22 51.18 31 2011 02 01 23 47.04 31 2011 02 02 00 43.51 31 2011 02 02 01 41.91 31 2011 02 02 02 41.45 31 2011 02 02 03 43.21 31 2011 02 02 04 52.18 31 2011 02 02 05 52.52 31 2011 02 02 06 52.47 31 2011 02 02 07 52.39 31 2011 02 02 08 52.61 31 2011 02 02 09 51.76 31 2011 02 02 10 50.13 31 2011 02 02 11 48.91 31 2011 02 02 12 48.56 31 2011 02 02 13 50.51 31 2011 02 02 14 48.45 31 2011 02 02 15 47.96 31 2011 02 02 16 46.49 31 2011 02 02 17 44.59 31 2011 02 02 18 40.70 31 2011 02 02 19 43.25 31 2011 02 02 20 45.68 31 2011 02 02 21 47.41 31 2011 02 02 22 46.63 31 2011 02 02 23 47.01 31 2011 02 03 00 46.78 31 2011 02 03 01 48.28 31 2011 02 03 02 48.88 31 2011 02 03 03 49.24 31 2011 02 03 04 42.06 31 2011 02 03 05 39.20 31 2011 02 03 06 41.26 31 2011 02 03 07 41.96 31 2011 02 03 08 48.96 31 2011 02 03 09 46.47 31 2011 02 03 10 48.63 31 2011 02 03 11 45.16 31 2011 02 03 12 43.28 31 2011 02 03 13 43.36 31 2011 02 03 14 43.59 31 2011 02 03 15 43.90 31 2011 02 03 16 45.14 31 2011 02 03 17 45.28 31 2011 02 03 18 47.43 31 2011 02 03 19 46.69 31 2011 02 03 20 46.39 31 2011 02 03 21 47.12 31 2011 02 03 22 48.30 31 2011 02 03 23 49.38 31 2011 02 04 00 48.93 31 2011 02 04 01 50.28 31 2011 02 04 02 50.67 31 2011 02 04 03 51.96 31 2011 02 04 04 51.95 31 2011 02 04 05 53.17 31 2011 02 04 06 53.06 31 2011 02 04 07 54.69 31 2011 02 04 08 60.44 31 2011 02 04 09 46.89 31 2011 02 04 10 41.40 31 2011 02 04 11 41.15 31 2011 02 04 12 41.77 31 2011 02 04 13 36.22 31 2011 02 04 14 33.68 31 2011 02 04 15 30.50 31 2011 02 04 16 29.29 31 2011 02 04 17 29.01 31 2011 02 04 18 28.00 31 2011 02 04 19 29.71 31 2011 02 04 22 37.79 31 2011 02 04 23 37.08 31 2011 02 05 00 34.70 31 2011 02 05 01 35.21 31 2011 02 05 02 39.35 31 2011 02 05 03 42.07 31 2011 02 05 04 52.18 31 2011 02 05 05 48.75 31 2011 02 05 06 41.94 31 2011 02 05 07 45.36 31 2011 02 05 08 39.54 31 2011 02 05 09 41.71 31 2011 02 05 10 43.26 31 2011 02 05 11 41.99 31 2011 02 05 12 42.54 31 2011 02 05 13 40.78 31 2011 02 05 14 39.06 31 2011 02 05 15 41.66 31 2011 02 05 16 38.36 31 2011 02 05 17 35.79 31 2011 02 05 18 37.88 31 2011 02 05 19 36.68 31 2011 02 05 20 36.74 31 2011 02 05 21 33.79 31 2011 02 05 22 31.56 31 2011 02 05 23 30.83 31 2011 02 06 00 30.70 31 2011 02 06 01 28.92 31 2011 02 06 02 28.43 31 2011 02 06 03 27.26 31 2011 02 06 04 33.73 31 2011 02 06 05 28.40 31 2011 02 06 06 27.91 31 2011 02 06 07 28.04 31 2011 02 06 08 36.44 31 2011 02 06 09 39.25 31 2011 02 06 10 37.60 31 2011 02 06 11 35.02 31 2011 02 06 12 34.27 31 2011 02 06 13 35.20 31 2011 02 06 14 33.16 31 2011 02 06 15 34.34 31 2011 02 06 16 33.99 31 2011 02 06 17 32.46 31 2011 02 06 18 32.75 31 2011 02 06 19 36.48 31 2011 02 06 20 36.05 31 2011 02 06 21 32.38 31 2011 02 06 22 28.10 31 2011 02 06 23 27.84 31 2011 02 07 00 27.77 31 2011 02 07 01 28.28 31 2011 02 07 02 27.61 31 2011 02 07 03 27.32 31 2011 02 07 04 27.41 31 2011 02 07 05 28.13 31 2011 02 07 06 29.40 31 2011 02 07 07 29.32 31 2011 02 07 08 30.89 31 2011 02 07 09 32.51 31 2011 02 07 10 32.41 31 2011 02 07 11 31.43 31 2011 02 07 12 31.40 31 2011 02 07 13 31.87 31 2011 02 07 14 32.15 31 2011 02 07 15 32.36 31 2011 02 07 16 32.40 31 2011 02 07 17 33.08 31 2011 02 07 18 33.47 31 2011 02 07 19 34.06 31 2011 02 07 20 30.94 31 2011 02 07 21 26.69 31 2011 02 07 22 25.01 31 2011 02 07 23 27.04 31 2011 02 08 00 25.11 31 2011 02 08 01 24.67 31 2011 02 08 02 24.16 31 2011 02 08 03 23.91 31 2011 02 08 04 23.91 31 2011 02 08 05 23.74 31 2011 02 08 06 25.10 31 2011 02 08 07 25.75 31 2011 02 08 08 26.42 31 2011 02 08 09 27.72 31 2011 02 08 10 25.44 31 2011 02 08 11 27.80 31 2011 02 08 12 27.21 31 2011 02 08 13 26.30 31 2011 02 08 14 26.10 31 2011 02 08 15 26.89 31 2011 02 08 16 24.90 31 2011 02 08 17 23.98 31 2011 02 08 18 24.82 31 2011 02 08 19 24.98 31 2011 02 08 20 26.86 31 2011 02 08 21 28.02 31 2011 02 08 22 29.11 31 2011 02 08 23 28.65 31 2011 02 09 00 28.12 31 2011 02 09 01 27.31 31 2011 02 09 02 26.22 31 2011 02 09 03 25.87 31 2011 02 09 04 27.14 31 2011 02 09 05 27.49 31 2011 02 09 06 27.90 31 2011 02 09 07 28.79 31 2011 02 09 08 28.27 31 2011 02 09 09 26.10 31 2011 02 09 10 27.44 31 2011 02 09 11 37.47 31 2011 02 09 12 41.08 31 2011 02 09 13 40.32 31 2011 02 09 14 40.23 31 2011 02 09 15 40.91 31 2011 02 09 16 42.47 31 2011 02 09 17 45.66 31 2011 02 09 18 45.83 31 2011 02 09 19 44.70 31 2011 02 09 20 47.48 31 2011 02 09 21 44.10 31 2011 02 09 22 36.76 31 2011 02 09 23 32.29 31 2011 02 10 00 31.36 31 2011 02 10 01 31.20 31 2011 02 10 02 30.88 31 2011 02 10 03 31.65 31 2011 02 10 04 33.11 31 2011 02 10 05 33.60 31 2011 02 10 06 35.66 31 2011 02 10 07 37.29 31 2011 02 10 08 38.29 31 2011 02 10 09 39.32 31 2011 02 10 10 37.54 31 2011 02 10 11 37.69 31 2011 02 10 12 34.72 31 2011 02 10 13 30.54 31 2011 02 10 14 35.76 31 2011 02 10 15 37.05 31 2011 02 10 16 37.35 31 2011 02 10 17 36.93 31 2011 02 10 18 33.61 31 2011 02 10 19 37.62 31 2011 02 10 22 36.39 31 2011 02 10 23 33.66 31 2011 02 11 00 32.32 31 2011 02 11 01 31.28 31 2011 02 11 02 28.56 31 2011 02 11 03 27.86 31 2011 02 11 04 27.73 31 2011 02 11 05 29.68 31 2011 02 11 06 25.59 31 2011 02 11 07 25.33 31 2011 02 11 08 24.34 31 2011 02 11 09 21.68 31 2011 02 11 10 26.59 31 2011 02 11 11 33.36 31 2011 02 11 12 33.32 31 2011 02 11 13 22.94 31 2011 02 11 14 19.34 31 2011 02 11 15 22.19 31 2011 02 11 16 25.26 31 2011 02 11 17 26.95 31 2011 02 11 18 26.78 31 2011 02 11 19 23.09 31 2011 02 11 20 24.67 31 2011 02 11 21 27.11 31 2011 02 11 22 25.90 31 2011 02 11 23 25.01 31 2011 02 12 00 25.16 31 2011 02 12 01 25.00 31 2011 02 12 02 24.66 31 2011 02 12 03 24.19 31 2011 02 12 04 23.45 31 2011 02 12 05 24.40 31 2011 02 12 06 24.23 31 2011 02 12 07 27.54 31 2011 02 12 08 28.57 31 2011 02 12 09 24.62 31 2011 02 12 10 25.93 31 2011 02 12 11 25.22 31 2011 02 12 12 28.53 31 2011 02 12 13 30.87 31 2011 02 12 14 30.64 31 2011 02 12 15 30.98 31 2011 02 12 16 30.46 31 2011 02 12 17 29.73 31 2011 02 12 18 28.48 31 2011 02 12 19 26.17 31 2011 02 12 20 24.01 31 2011 02 12 21 22.63 31 2011 02 12 22 22.64 31 2011 02 12 23 22.62 31 2011 02 13 00 22.58 31 2011 02 13 01 23.70 31 2011 02 13 02 24.07 31 2011 02 13 03 22.77 31 2011 02 13 04 25.35 31 2011 02 13 05 25.87 31 2011 02 13 06 27.18 31 2011 02 13 07 24.79 31 2011 02 13 08 24.47 31 2011 02 13 09 25.60 31 2011 02 13 10 26.98 31 2011 02 13 11 27.33 31 2011 02 13 12 27.69 31 2011 02 13 13 26.82 31 2011 02 13 14 26.46 31 2011 02 13 15 26.55 31 2011 02 13 16 26.20 31 2011 02 13 17 26.16 31 2011 02 13 18 26.42 31 2011 02 13 19 26.10 31 2011 02 13 20 23.30 31 2011 02 13 21 21.55 31 2011 02 13 22 19.03 31 2011 02 13 23 18.61 31 2011 02 14 00 18.73 31 2011 02 14 01 19.49 31 2011 02 14 02 20.06 31 2011 02 14 03 19.58 31 2011 02 14 04 19.17 31 2011 02 14 05 19.09 31 2011 02 14 06 20.11 31 2011 02 14 07 23.38 31 2011 02 14 08 23.86 31 2011 02 14 09 24.38 31 2011 02 14 10 25.13 31 2011 02 14 11 26.88 31 2011 02 14 12 26.87 31 2011 02 14 13 26.79 31 2011 02 14 14 26.93 31 2011 02 14 15 27.42 31 2011 02 14 16 28.32 31 2011 02 14 17 28.53 31 2011 02 14 18 26.50 31 2011 02 14 19 25.44 31 2011 02 14 20 27.53 31 2011 02 14 21 31.57 31 2011 02 15 00 22.59 31 2011 02 15 01 21.87 31 2011 02 15 02 21.83 31 2011 02 15 03 22.00 31 2011 02 15 04 21.96 31 2011 02 15 05 22.80 31 2011 02 15 06 24.41 31 2011 02 15 07 30.78 31 2011 02 15 08 33.18 31 2011 02 15 09 32.78 31 2011 02 15 10 28.95 31 2011 02 15 11 26.74 31 2011 02 15 12 25.00 31 2011 02 15 13 29.81 31 2011 02 15 14 31.08 31 2011 02 15 15 30.69 31 2011 02 15 16 30.64 31 2011 02 15 17 31.31 31 2011 02 15 18 31.83 31 2011 02 15 19 32.40 31 2011 02 15 20 30.97 31 2011 02 15 21 28.58 31 2011 02 15 22 29.26 31 2011 02 15 23 28.04 31 2011 02 16 00 31.58 31 2011 02 16 01 34.67 31 2011 02 16 02 34.31 31 2011 02 16 03 31.59 31 2011 02 16 04 28.39 31 2011 02 16 05 27.51 31 2011 02 16 06 29.62 31 2011 02 16 07 30.87 31 2011 02 16 08 30.75 31 2011 02 16 09 28.90 31 2011 02 16 10 27.88 31 2011 02 16 11 27.88 31 2011 02 16 12 28.40 31 2011 02 16 13 28.09 31 2011 02 16 14 27.46 31 2011 02 16 15 27.83 31 2011 02 16 16 28.15 31 2011 02 16 17 26.79 31 2011 02 16 18 26.30 31 2011 02 16 19 26.28 31 2011 02 16 20 25.17 31 2011 02 16 21 22.32 31 2011 02 16 22 21.43 31 2011 02 16 23 18.73 31 2011 02 17 00 20.98 31 2011 02 17 01 21.50 31 2011 02 17 02 24.55 31 2011 02 17 03 21.97 31 2011 02 17 04 20.41 31 2011 02 17 05 22.97 31 2011 02 17 06 26.79 31 2011 02 17 07 29.39 31 2011 02 17 08 34.51 31 2011 02 17 09 30.35 31 2011 02 17 10 29.63 31 2011 02 17 11 37.89 31 2011 02 17 12 40.29 31 2011 02 17 13 42.99 31 2011 02 17 14 41.27 31 2011 02 17 15 41.75 31 2011 02 17 16 41.70 31 2011 02 17 17 43.48 31 2011 02 17 18 42.45 31 2011 02 17 19 41.26 31 2011 02 18 00 23.92 31 2011 02 18 01 20.84 31 2011 02 18 02 20.20 31 2011 02 18 03 21.66 31 2011 02 18 04 22.51 31 2011 02 18 05 23.36 31 2011 02 18 06 30.52 31 2011 02 18 07 32.26 31 2011 02 18 08 40.64 31 2011 02 18 09 42.38 31 2011 02 18 10 40.83 31 2011 02 18 11 33.11 31 2011 02 18 12 30.29 31 2011 02 18 13 30.85 31 2011 02 18 14 30.96 31 2011 02 18 15 28.83 31 2011 02 18 16 28.05 31 2011 02 18 17 25.51 31 2011 02 18 18 27.38 31 2011 02 18 19 25.84 31 2011 02 18 20 28.44 31 2011 02 18 21 29.41 31 2011 02 18 22 25.85 31 2011 02 18 23 23.06 31 2011 02 19 00 22.03 31 2011 02 19 01 21.00 31 2011 02 19 02 21.27 31 2011 02 19 03 21.10 31 2011 02 19 04 21.94 31 2011 02 19 05 20.81 31 2011 02 19 06 22.56 31 2011 02 19 07 22.93 31 2011 02 19 08 23.41 31 2011 02 19 09 23.23 31 2011 02 19 10 22.32 31 2011 02 19 11 20.98 31 2011 02 19 12 21.07 31 2011 02 19 13 21.11 31 2011 02 19 14 21.51 31 2011 02 19 15 22.72 31 2011 02 19 16 26.09 31 2011 02 19 17 25.89 31 2011 02 19 18 25.62 31 2011 02 19 19 29.56 31 2011 02 19 20 26.88 31 2011 02 19 21 23.24 31 2011 02 19 22 22.77 31 2011 02 19 23 21.43 31 2011 02 20 00 21.20 31 2011 02 20 01 21.71 31 2011 02 20 02 21.19 31 2011 02 20 03 23.11 31 2011 02 20 04 24.59 31 2011 02 20 05 23.53 31 2011 02 20 06 24.18 31 2011 02 20 07 24.21 31 2011 02 20 08 25.50 31 2011 02 20 09 26.37 31 2011 02 20 10 27.42 31 2011 02 20 11 26.39 31 2011 02 20 12 25.84 31 2011 02 20 13 25.26 31 2011 02 20 14 24.30 31 2011 02 20 15 25.37 31 2011 02 20 16 26.21 31 2011 02 20 17 25.03 31 2011 02 20 18 27.98 31 2011 02 20 19 27.57 31 2011 02 20 20 25.39 31 2011 02 20 21 23.92 31 2011 02 20 22 22.65 31 2011 02 20 23 24.51 31 2011 02 21 00 24.47 31 2011 02 21 01 24.28 31 2011 02 21 02 26.39 31 2011 02 21 03 30.85 31 2011 02 21 04 27.49 31 2011 02 21 05 26.31 31 2011 02 21 06 29.61 31 2011 02 21 07 29.85 31 2011 02 21 08 31.47 31 2011 02 21 09 30.84 31 2011 02 21 10 34.23 31 2011 02 21 11 34.22 31 2011 02 21 12 33.22 31 2011 02 21 13 33.19 31 2011 02 21 14 33.70 31 2011 02 21 15 34.52 31 2011 02 21 16 35.25 31 2011 02 21 17 37.50 31 2011 02 21 18 34.47 31 2011 02 21 19 33.71 31 2011 02 21 20 33.48 31 2011 02 21 21 29.60 31 2011 02 21 22 29.61 31 2011 02 21 23 30.63 31 2011 02 22 00 29.11 31 2011 02 22 01 29.06 31 2011 02 22 02 29.69 31 2011 02 22 03 29.45 31 2011 02 22 04 29.85 31 2011 02 22 05 30.31 31 2011 02 22 06 30.63 31 2011 02 22 07 30.63 31 2011 02 22 08 33.24 31 2011 02 22 09 32.03 31 2011 02 22 10 31.53 31 2011 02 22 11 31.33 31 2011 02 22 12 34.28 31 2011 02 22 13 33.82 31 2011 02 22 14 31.87 31 2011 02 22 15 34.41 31 2011 02 22 16 34.11 31 2011 02 22 17 34.21 31 2011 02 22 18 34.38 31 2011 02 22 19 30.95 31 2011 02 22 20 32.15 31 2011 02 22 21 29.61 31 2011 02 22 22 27.58 31 2011 02 22 23 28.69 31 2011 02 23 00 30.65 31 2011 02 23 01 32.08 31 2011 02 23 02 35.05 31 2011 02 23 03 35.33 31 2011 02 23 04 33.84 31 2011 02 23 05 35.84 31 2011 02 23 06 34.95 31 2011 02 23 07 37.02 31 2011 02 23 08 38.57 31 2011 02 23 09 38.50 31 2011 02 23 10 38.57 31 2011 02 23 11 37.55 31 2011 02 23 12 37.34 31 2011 02 23 13 38.55 31 2011 02 23 14 38.46 31 2011 02 23 15 39.03 31 2011 02 23 16 39.14 31 2011 02 23 17 39.04 31 2011 02 23 18 38.19 31 2011 02 23 19 34.84 31 2011 02 23 20 32.40 31 2011 02 23 21 32.34 31 2011 02 23 22 32.30 31 2011 02 23 23 34.11 31 2011 02 24 00 36.64 31 2011 02 24 01 37.28 31 2011 02 24 02 37.19 31 2011 02 24 03 36.39 31 2011 02 24 04 36.60 31 2011 02 24 05 35.40 31 2011 02 24 06 36.85 31 2011 02 24 07 36.68 31 2011 02 24 08 36.24 31 2011 02 24 09 35.64 31 2011 02 24 10 36.45 31 2011 02 24 11 35.63 31 2011 02 24 12 36.61 31 2011 02 24 13 37.19 31 2011 02 24 14 37.09 31 2011 02 24 15 37.38 31 2011 02 24 16 38.34 31 2011 02 24 17 37.05 31 2011 02 24 18 37.49 31 2011 02 24 19 36.35 31 2011 02 24 20 36.48 31 2011 02 24 22 37.96 31 2011 02 24 23 38.14 31 2011 02 25 00 37.98 31 2011 02 25 01 37.74 31 2011 02 25 02 37.36 31 2011 02 25 03 38.18 31 2011 02 25 04 38.12 31 2011 02 25 05 39.12 31 2011 02 25 06 41.21 31 2011 02 25 07 43.45 31 2011 02 25 08 43.99 31 2011 02 25 09 42.65 31 2011 02 25 10 42.24 31 2011 02 25 11 42.03 31 2011 02 25 12 41.96 31 2011 02 25 13 41.45 31 2011 02 25 14 40.96 31 2011 02 25 15 40.96 31 2011 02 25 16 41.46 31 2011 02 25 17 39.92 31 2011 02 25 18 37.75 31 2011 02 25 19 38.12 31 2011 02 25 20 35.77 31 2011 02 25 21 36.00 31 2011 02 25 22 34.47 31 2011 02 25 23 32.36 31 2011 02 26 00 33.78 31 2011 02 26 01 33.15 31 2011 02 26 02 34.40 31 2011 02 26 03 31.42 31 2011 02 26 04 33.58 31 2011 02 26 05 34.65 31 2011 02 26 06 35.26 31 2011 02 26 07 35.47 31 2011 02 26 08 34.99 31 2011 02 26 09 35.18 31 2011 02 26 10 40.61 31 2011 02 26 11 38.00 31 2011 02 26 12 37.09 31 2011 02 26 13 37.31 31 2011 02 26 14 36.52 31 2011 02 26 15 36.49 31 2011 02 26 16 35.61 31 2011 02 26 17 33.75 31 2011 02 26 18 34.19 31 2011 02 26 19 33.44 31 2011 02 26 20 30.05 31 2011 02 26 21 30.14 31 2011 02 26 22 29.97 31 2011 02 26 23 29.75 31 2011 02 27 00 28.97 31 2011 02 27 01 27.78 31 2011 02 27 02 28.81 31 2011 02 27 03 27.78 31 2011 02 27 04 26.65 31 2011 02 27 05 27.74 31 2011 02 27 06 28.87 31 2011 02 27 07 29.07 31 2011 02 27 08 29.62 31 2011 02 27 09 30.53 31 2011 02 27 10 31.76 31 2011 02 27 11 31.78 31 2011 02 27 12 32.53 31 2011 02 27 13 33.79 31 2011 02 27 14 36.37 31 2011 02 27 15 33.19 31 2011 02 27 16 33.28 31 2011 02 27 17 33.40 31 2011 02 27 18 34.21 31 2011 02 27 19 32.56 31 2011 02 27 20 32.00 31 2011 02 27 21 30.58 31 2011 02 27 22 29.48 31 2011 02 27 23 30.05 31 2011 02 28 00 29.38 31 2011 02 28 01 29.94 31 2011 02 28 02 31.79 31 2011 02 28 03 32.51 31 2011 02 28 04 35.03 31 2011 02 28 05 33.96 31 2011 02 28 06 35.35 31 2011 02 28 07 35.42 31 2011 02 28 08 27.84 31 2011 02 28 09 30.33 31 2011 02 28 10 26.85 31 2011 02 28 11 31.28 31 2011 02 28 12 27.69 31 2011 02 28 13 34.52 31 2011 02 28 14 41.87 31 2011 02 28 15 40.84 31 2011 02 28 16 41.17 31 2011 02 28 17 40.99 31 2011 02 28 18 42.41 31 2011 02 28 19 40.94 31 2011 02 28 20 40.68 31 2011 02 28 22 38.41 31 2011 02 28 23 36.13