YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.97296e+01 3.81863e-01 192 2000 3 2.21362e+01 1.24640e+00 444 2000 4 2.37617e+01 1.28889e+00 711 2000 5 2.59284e+01 2.16336e+00 544 2000 6 2.93137e+01 1.42474e+00 399 2000 7 2.97233e+01 1.10282e+00 451 2000 8 2.99916e+01 8.65585e-01 387 2000 9 2.94712e+01 8.32309e-01 390 2000 10 2.45810e+01 1.71389e+00 876 2000 11 2.28752e+01 1.47182e+00 425 2000 12 1.77172e+01 1.78074e+00 580 2001 1 1.42942e+01 1.37298e-01 129 2001 2 1.99406e+01 2.07938e+00 386 2001 3 2.00381e+01 8.53655e-01 467 2001 4 2.35671e+01 1.51319e+00 500 2001 5 2.53986e+01 2.65125e+00 693 2001 6 2.88165e+01 1.11371e+00 230 2001 7 2.83341e+01 1.60523e+00 260 2001 8 2.99587e+01 1.53234e+00 424 2001 9 2.74122e+01 2.25605e+00 482 2001 10 2.39827e+01 1.60864e+00 435 2001 11 2.15214e+01 9.49626e-01 741 2001 12 2.16700e+01 1.61477e+00 594 2002 1 1.77626e+01 2.89638e+00 373 2002 2 1.88511e+01 1.72877e+00 454 2002 3 2.20428e+01 1.90314e+00 386 2002 4 2.50288e+01 1.31591e+00 306 2002 5 2.71488e+01 1.70641e+00 784 2002 6 2.78752e+01 8.11105e-01 304 2002 7 2.96429e+01 1.67212e+00 1579 2002 8 2.93674e+01 1.25302e+00 1427 2002 9 2.91022e+01 1.14846e+00 1754 2002 10 2.75246e+01 1.54079e+00 3187 2002 11 2.28320e+01 2.50152e+00 1784 2002 12 1.75806e+01 1.00003e+00 1176 2003 1 1.48493e+01 1.28546e+00 1819 2003 2 1.73985e+01 1.90778e+00 1250 2003 3 2.30510e+01 1.31422e+00 1002 2003 4 2.32098e+01 1.90452e+00 2389 2003 5 2.79770e+01 1.92457e+00 2399 2003 6 2.81892e+01 1.38100e+00 1120 2003 7 2.97575e+01 1.77831e+00 1233 2003 8 2.84321e+01 9.80998e-01 1768 2003 9 2.85903e+01 1.14941e+00 2014 2003 10 2.59239e+01 1.05483e+00 2095 2003 11 2.32741e+01 1.34447e+00 2405 2003 12 1.74083e+01 1.65764e+00 1234 2004 1 1.68214e+01 1.23454e+00 2071 2004 2 1.78170e+01 1.41550e+00 876 2004 3 2.04584e+01 1.49016e+00 2290 2004 4 2.19833e+01 1.37341e+00 2240 2004 5 2.68712e+01 1.73345e+00 3096 2004 6 3.00654e+01 1.20237e+00 2644 2004 7 2.95962e+01 2.08376e+00 2042 2004 8 2.96681e+01 1.72515e+00 1747 2004 9 2.81189e+01 1.79232e+00 1706 2004 10 2.62876e+01 1.65576e+00 2830 2004 11 2.32105e+01 1.71559e+00 2073 2004 12 1.80423e+01 2.57076e+00 1621 2005 1 1.73322e+01 1.82397e+00 1601 2005 2 1.71508e+01 1.60084e+00 2123 2005 3 2.00937e+01 2.16247e+00 1254 2005 4 2.24854e+01 1.06999e+00 2810 2005 5 2.59705e+01 1.65085e+00 2724 2005 6 2.90428e+01 1.24112e+00 1391 2005 7 2.99545e+01 1.76026e+00 1968 2005 8 3.09519e+01 1.60252e+00 2052 2005 9 2.84508e+01 1.42804e+00 2332 2005 10 2.56639e+01 2.84966e+00 2267 2005 11 2.16672e+01 1.45470e+00 1895 2005 12 1.78278e+01 1.67709e+00 1465 2006 1 1.73964e+01 9.74069e-01 1717 2006 2 1.75187e+01 1.27935e+00 1599 2006 3 2.10648e+01 1.35662e+00 2936 2006 4 2.45132e+01 2.23845e+00 3167 2006 5 2.64559e+01 1.47927e+00 3058 2006 6 2.89833e+01 1.13506e+00 2107 2006 7 2.94472e+01 1.50029e+00 1741 2006 8 3.06184e+01 1.24295e+00 2666 2006 9 2.93678e+01 1.07728e+00 2453 2006 10 2.61877e+01 1.78357e+00 3050 2006 11 2.07911e+01 2.13458e+00 2225 2006 12 1.90236e+01 1.07550e+00 1274 2007 1 1.87900e+01 1.39243e+00 1535 2007 2 1.67655e+01 1.32844e+00 1375 2007 3 2.04709e+01 1.23917e+00 2073 2007 4 2.29326e+01 1.50973e+00 2527 2007 5 2.51890e+01 9.82525e-01 3035 2007 6 2.77623e+01 1.77309e+00 2191 2007 7 3.02891e+01 1.94863e+00 1796 2007 8 3.06249e+01 1.23810e+00 2507 2007 9 2.91909e+01 1.55494e+00 1866 2007 10 2.71829e+01 8.94714e-01 1327 2007 11 2.18426e+01 1.66676e+00 2484 2007 12 2.10376e+01 1.23697e+00 2191 2008 1 1.71853e+01 1.24631e+00 1566 2008 2 1.92573e+01 1.11170e+00 1888 2008 3 1.98875e+01 1.56433e+00 2050 2008 4 2.33103e+01 1.46054e+00 2830 2008 5 2.63040e+01 1.44146e+00 2858 2008 6 2.91361e+01 1.40255e+00 1984 2008 7 2.92913e+01 1.84023e+00 1544 2008 8 2.95496e+01 1.52833e+00 1662 2008 9 2.83633e+01 1.29995e+00 2278 2008 10 2.51726e+01 2.18106e+00 2674 2008 11 1.91616e+01 1.94440e+00 2868 2008 12 1.84357e+01 1.14016e+00 1675 2009 1 1.75285e+01 2.17263e+00 2095 2009 2 1.67601e+01 1.53094e+00 1701 2009 3 2.03716e+01 2.15389e+00 2288 2009 4 2.31410e+01 1.58494e+00 2222 2009 5 2.67868e+01 1.53575e+00 2470 2009 6 2.94224e+01 1.52066e+00 2383 2009 7 3.00813e+01 1.43991e+00 2257 2009 8 2.98909e+01 1.27538e+00 2088 2009 9 2.95412e+01 1.43092e+00 1950 2009 10 2.76413e+01 2.54097e+00 2975 2009 11 2.24553e+01 1.77514e+00 1724 2009 12 1.87417e+01 1.95403e+00 933 2010 1 1.39893e+01 3.08311e+00 1342 2010 2 1.50175e+01 1.15714e+00 1237 2010 3 1.71532e+01 2.12714e+00 2156 2010 4 2.28020e+01 1.89727e+00 2282 2010 5 2.77637e+01 1.80838e+00 3023 2010 6 3.06970e+01 1.13534e+00 2502 2010 7 2.96155e+01 1.31693e+00 2196 2010 8 3.03004e+01 2.10192e+00 1722 2010 9 2.89794e+01 1.15993e+00 2236 2010 10 2.60746e+01 1.22284e+00 3830 2010 11 2.16164e+01 1.74633e+00 2942 2010 12 1.63843e+01 3.10756e+00 1940 2011 1 1.50301e+01 1.14996e+00 1204 2011 2 1.80396e+01 1.60293e+00 1813 2011 3 2.15950e+01 1.64764e+00 2316 2011 4 2.55019e+01 1.60441e+00 3108 2011 5 2.74442e+01 1.21516e+00 3183 2011 6 2.95483e+01 1.46327e+00 2503 2011 7 3.01190e+01 1.36464e+00 1736 2011 8 3.01313e+01 9.68716e-01 1766 2011 9 2.91415e+01 1.40059e+00 2532 2011 10 2.51230e+01 2.27000e+00 2320 2011 11 2.10964e+01 1.08068e+00 2447 2011 12 1.95104e+01 7.18540e-01 2279 2012 1 1.77439e+01 1.41258e+00 2125 2012 2 1.92370e+01 1.75650e+00 1430 2012 3 2.28931e+01 1.44670e+00 2845 2012 4 2.44282e+01 1.34347e+00 2488 2012 5 2.74028e+01 1.47795e+00 2675 2012 6 2.87559e+01 1.23551e+00 1778 2012 7 2.96267e+01 1.43867e+00 2196 2012 8 3.02814e+01 1.53080e+00 1652 2012 9 2.88464e+01 1.53270e+00 1990 2012 10 2.63468e+01 2.07531e+00 2270 2012 11 2.00370e+01 9.73900e-01 2196 2012 12 1.98431e+01 1.64329e+00 1635 2013 1 1.91543e+01 1.37574e+00 1748 2013 2 1.85855e+01 1.40801e+00 2133 2013 3 1.87233e+01 1.35682e+00 2129 2013 4 2.36311e+01 2.16731e+00 1837 2013 5 2.65122e+01 1.40297e+00 2652 2013 6 2.89908e+01 1.94892e+00 1948 2013 7 2.95102e+01 1.87617e+00 1213 2013 8 3.04488e+01 1.40709e+00 2103 2013 9 2.93253e+01 1.63842e+00 2312 2013 10 2.69743e+01 1.99753e+00 2797 2013 11 2.23245e+01 1.79971e+00 1388 2013 12 2.05858e+01 1.49570e+00 2076 2014 1 1.62570e+01 1.62856e+00 1260 2014 2 1.87843e+01 1.39346e+00 1312 2014 3 2.05504e+01 1.18170e+00 2098 2014 4 2.32170e+01 1.92714e+00 1855 2014 5 2.62925e+01 9.71381e-01 1970 2014 6 2.92462e+01 1.83828e+00 2226 2014 7 3.05174e+01 1.57749e+00 2158 2014 8 3.05692e+01 1.26843e+00 2589 2014 9 2.97999e+01 1.30966e+00 1166 2014 10 2.67334e+01 1.76653e+00 3068 2014 11 2.09888e+01 1.84383e+00 1968 2014 12 1.86754e+01 1.23065e+00 1698 2015 1 1.81716e+01 1.98655e+00 1615 2015 2 1.68537e+01 1.12123e+00 1955 2015 3 2.30500e+01 2.07115e+00 1966 2015 4 2.50966e+01 1.94873e+00 1706 2015 5 2.76140e+01 1.61275e+00 2864 2015 6 3.01042e+01 1.67015e+00 1952 2015 7 2.98424e+01 1.37125e+00 1672 2015 8 3.02402e+01 2.31605e+00 1764 2015 9 2.95977e+01 1.49716e+00 1626 2015 10 2.67842e+01 1.76363e+00 2371 2015 11 2.44070e+01 2.16530e+00 2174 2015 12 2.12990e+01 1.24935e+00 1647 2016 1 1.84161e+01 2.25926e+00 1181 2016 2 1.72348e+01 1.46248e+00 1830 2016 3 2.02049e+01 1.98117e+00 1382 2016 4 2.41178e+01 1.53050e+00 2393 2016 5 2.70953e+01 1.52696e+00 2537 2016 6 2.95230e+01 1.43367e+00 1993 2016 7 3.11807e+01 1.20275e+00 1943 2016 8 3.09866e+01 1.38495e+00 2055 2016 9 2.99070e+01 1.59871e+00 2609 2016 10 2.60398e+01 1.61242e+00 2164 2016 11 2.19842e+01 1.70027e+00 2023 2016 12 2.10230e+01 9.74081e-01 2558 2017 1 1.90074e+01 1.69945e+00 1886 2017 2 2.01357e+01 1.27129e+00 2109 2017 3 2.11796e+01 1.34716e+00 2714 2017 4 2.41946e+01 1.27701e+00 2516 2017 5 2.65776e+01 1.57918e+00 2479 2017 6 2.88788e+01 2.06820e+00 1314 2017 7 3.07375e+01 1.40598e+00 2151 2017 8 3.08295e+01 2.05293e+00 1803 2017 9 2.93419e+01 1.47878e+00 1994 2017 10 2.59222e+01 2.01886e+00 2222 2017 11 2.22225e+01 1.09187e+00 2932 2017 12 2.04549e+01 1.69102e+00 2365 2018 1 1.53266e+01 1.03679e+00 1482 2018 2 2.09587e+01 3.02845e+00 2277 2018 3 2.05701e+01 1.80453e+00 2772 2018 4 2.43490e+01 1.18257e+00 2630 2018 5 2.54654e+01 1.56402e+00 1453 2018 6 2.96649e+01 1.62193e+00 1745 2018 7 2.99708e+01 1.52576e+00 2077 2018 8 3.03389e+01 1.71246e+00 1977 2018 9 3.02790e+01 1.30617e+00 2485 2018 10 2.78148e+01 1.59973e+00 2799 2018 11 2.37839e+01 1.98862e+00 2023 2018 12 1.89730e+01 1.73943e+00 1884 2019 1 1.82934e+01 2.19600e+00 1793 2019 2 2.03117e+01 2.04111e+00 1925 2019 3 2.21106e+01 1.14632e+00 2280 2019 4 2.41349e+01 1.61834e+00 2272 2019 5 2.79968e+01 1.64051e+00 2915 2019 6 3.05266e+01 1.39272e+00 2323 2019 7 3.00956e+01 1.38169e+00 2047 2019 8 3.00732e+01 1.39652e+00 1619 2019 9 2.91061e+01 1.36684e+00 2492 2019 10 2.73074e+01 1.09625e+00 2431 2019 11 2.28420e+01 2.53238e+00 2132 2019 12 1.98270e+01 1.36451e+00 1571 2020 1 1.92957e+01 1.35609e+00 2285 2020 2 1.93292e+01 1.57575e+00 1984 2020 3 2.34637e+01 2.76188e+00 2727 2020 4 2.56602e+01 1.14550e+00 1755 2020 5 2.62879e+01 1.39858e+00 2996 2020 6 3.04300e+01 1.40517e+00 1840 2020 7 3.07190e+01 1.15951e+00 1854 2020 8 3.15246e+01 1.07938e+00 1048 2020 9 2.98553e+01 1.50832e+00 1144 2020 10 2.73345e+01 1.08759e+00 1805 2020 11 2.34020e+01 1.62344e+00 2134 2020 12 1.80831e+01 1.60234e+00 2756 2021 1 1.78970e+01 1.08122e+00 1868 2021 2 1.96622e+01 2.11081e+00 2520 2021 3 2.15197e+01 1.40023e+00 2583 2021 4 2.44074e+01 1.68817e+00 2495 2021 5 2.71106e+01 1.43972e+00 2757 2021 6 2.84077e+01 1.39048e+00 1117 2021 7 3.02774e+01 1.72850e+00 1606 2021 8 3.01217e+01 1.15798e+00 1591 2021 9 2.97275e+01 1.12258e+00 2043 2021 10 2.77655e+01 1.52827e+00 2680 2021 11 2.09614e+01 1.48990e+00 2397 2021 12 2.06879e+01 1.19790e+00 3230 2022 1 1.89228e+01 2.27349e+00 2722 2022 2 1.85876e+01 2.48737e+00 2586 2022 3 2.24907e+01 9.75220e-01 2997 2022 4 2.45847e+01 9.40154e-01 1683 2022 5 2.76548e+01 1.25343e+00 2487 2022 6 2.95804e+01 1.47083e+00 2474 2022 7 3.10904e+01 1.04518e+00 2764 2022 8 3.05500e+01 1.28664e+00 1429 2022 9 2.97008e+01 2.12910e+00 1871 2022 10 2.47871e+01 1.52749e+00 2546 2022 11 2.36994e+01 1.91582e+00 1717 2022 12 2.04681e+01 2.93026e+00 2204 2023 1 1.80134e+01 1.28514e+00 2820 2023 2 2.08929e+01 1.65061e+00 2784 2023 3 2.36245e+01 1.77442e+00 3574 2023 4 2.55687e+01 8.60889e-01 1829 2023 5 2.73691e+01 1.56611e+00 3224 2023 6 2.93206e+01 1.80425e+00 2344 2023 7 3.15333e+01 1.11108e+00 1970 2023 8 3.16363e+01 1.47659e+00 2652 2023 9 3.02547e+01 1.08704e+00 2498 2023 10 2.53778e+01 1.89256e+00 2318 2023 11 2.28996e+01 1.31561e+00 1960 2023 12 1.83209e+01 1.81452e+00 976 2024 1 1.71247e+01 1.06704e+00 985 2024 2 1.83136e+01 8.11820e-01 2389 2024 3 2.32752e+01 1.16307e+00 1533 2024 4 2.36163e+01 2.11095e-01 64