YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.21515e+01 6.64359e-01 256 2000 3 2.46189e+01 9.01535e-01 559 2000 4 2.54035e+01 1.27447e+00 696 2000 5 2.80296e+01 1.58229e+00 472 2000 6 2.86934e+01 1.08508e+00 330 2000 7 3.15305e+01 1.05739e+00 477 2000 8 3.06147e+01 9.73852e-01 174 2000 9 2.99218e+01 9.67296e-01 572 2000 10 2.58156e+01 1.58138e+00 558 2000 11 2.44604e+01 1.12028e+00 561 2000 12 2.23485e+01 1.44271e+00 336 2001 1 1.96131e+01 1.43041e+00 308 2001 2 2.36202e+01 9.16181e-01 921 2001 3 2.32247e+01 1.68874e+00 574 2001 4 2.53151e+01 1.21299e+00 793 2001 5 2.57942e+01 1.95630e+00 462 2001 6 2.91084e+01 2.45672e+00 238 2001 7 2.81233e+01 1.76522e+00 426 2001 8 2.99307e+01 1.50255e+00 569 2001 9 2.87371e+01 1.87723e+00 324 2001 10 2.68458e+01 6.00357e-01 515 2001 11 2.38035e+01 8.88578e-01 545 2001 12 2.42561e+01 6.86308e-01 555 2002 1 2.30733e+01 1.36857e+00 503 2002 2 2.29970e+01 1.63329e+00 369 2002 3 2.50659e+01 1.58347e+00 467 2002 4 2.63447e+01 1.86877e+00 638 2002 5 2.79471e+01 8.35267e-01 623 2002 6 2.71578e+01 8.95815e-01 89 2002 7 3.01438e+01 1.33058e+00 2478 2002 8 2.98060e+01 1.34903e+00 1604 2002 9 2.89980e+01 1.20094e+00 1492 2002 10 2.82441e+01 1.05054e+00 3206 2002 11 2.46584e+01 2.76261e+00 2687 2002 12 2.14732e+01 1.63296e+00 1977 2003 1 1.73891e+01 1.74684e+00 1797 2003 2 2.24014e+01 2.01770e+00 2988 2003 3 2.74312e+01 1.05420e+00 2180 2003 4 2.49590e+01 1.84295e+00 2367 2003 5 2.89467e+01 1.15834e+00 2465 2003 6 2.93637e+01 8.95668e-01 1252 2003 7 2.93176e+01 1.33367e+00 1784 2003 8 2.98328e+01 1.25354e+00 1516 2003 9 2.99600e+01 1.10328e+00 1408 2003 10 2.80355e+01 1.41049e+00 2533 2003 11 2.43787e+01 1.10434e+00 2621 2003 12 1.99914e+01 1.40942e+00 1941 2004 1 2.01149e+01 1.34061e+00 2852 2004 2 2.24383e+01 1.71696e+00 1846 2004 3 2.31888e+01 1.28718e+00 2592 2004 4 2.40756e+01 1.82065e+00 2320 2004 5 2.70574e+01 1.91026e+00 2738 2004 6 2.99649e+01 1.06600e+00 2447 2004 7 3.03716e+01 1.23810e+00 1949 2004 8 3.07752e+01 1.30614e+00 1779 2004 9 2.90863e+01 1.17801e+00 1953 2004 10 2.71663e+01 1.37213e+00 2806 2004 11 2.43312e+01 1.10840e+00 2778 2004 12 2.15128e+01 2.36126e+00 1663 2005 1 2.01126e+01 2.22627e+00 2701 2005 2 2.09826e+01 1.35745e+00 2146 2005 3 2.37775e+01 2.37617e+00 2442 2005 4 2.40433e+01 1.10668e+00 3064 2005 5 2.68765e+01 1.96801e+00 2463 2005 6 2.94122e+01 1.03925e+00 1762 2005 7 3.02240e+01 1.39031e+00 2054 2005 8 3.10025e+01 1.53016e+00 2593 2005 9 3.04295e+01 1.39085e+00 2081 2005 10 2.71813e+01 2.61045e+00 1383 2005 11 2.38986e+01 1.44739e+00 2464 2005 12 2.17874e+01 1.66644e+00 2635 2006 1 2.10161e+01 2.05640e+00 1918 2006 2 2.13111e+01 2.10027e+00 2689 2006 3 2.35175e+01 1.71088e+00 3208 2006 4 2.56322e+01 1.81265e+00 3035 2006 5 2.75251e+01 1.82688e+00 2710 2006 6 2.99835e+01 1.27487e+00 2266 2006 7 2.91527e+01 1.31378e+00 1343 2006 8 3.00560e+01 1.12302e+00 1825 2006 9 3.00121e+01 8.77777e-01 2024 2006 10 2.74024e+01 1.91764e+00 3033 2006 11 2.36265e+01 1.85441e+00 1232 2006 12 2.34254e+01 1.16725e+00 1172 2007 1 2.30674e+01 1.53626e+00 1957 2007 2 2.05716e+01 1.87822e+00 1596 2007 3 2.32102e+01 1.33886e+00 2260 2007 4 2.45240e+01 1.57595e+00 2838 2007 5 2.69304e+01 1.64206e+00 2682 2007 6 2.92318e+01 1.74112e+00 2124 2007 7 3.07272e+01 1.23767e+00 2313 2007 8 3.02783e+01 1.14178e+00 2680 2007 9 2.99193e+01 1.48836e+00 2086 2007 10 2.76601e+01 1.23738e+00 1446 2007 11 2.35028e+01 1.24099e+00 2642 2007 12 2.31549e+01 1.73266e+00 2776 2008 1 2.16321e+01 1.42405e+00 1792 2008 2 2.36091e+01 2.01824e+00 2557 2008 3 2.35988e+01 1.79092e+00 2232 2008 4 2.52090e+01 1.52496e+00 3306 2008 5 2.80729e+01 1.68805e+00 3172 2008 6 2.90711e+01 1.28642e+00 1620 2008 7 2.97703e+01 1.18493e+00 2104 2008 8 3.08506e+01 1.25214e+00 2133 2008 9 2.88621e+01 1.03139e+00 1873 2008 10 2.72531e+01 1.66030e+00 1693 2008 11 2.23109e+01 2.19997e+00 2652 2008 12 2.18921e+01 1.19803e+00 2723 2009 1 2.05697e+01 2.25663e+00 2758 2009 2 2.04836e+01 2.38835e+00 2557 2009 3 2.23716e+01 2.05353e+00 2598 2009 4 2.51090e+01 1.32517e+00 2689 2009 5 2.76713e+01 1.73778e+00 2726 2009 6 3.02941e+01 1.64936e+00 1664 2009 7 3.03739e+01 1.15475e+00 2327 2009 8 3.02132e+01 9.80356e-01 2320 2009 9 2.99968e+01 1.43908e+00 1857 2009 10 2.82699e+01 2.32838e+00 2550 2009 11 2.42055e+01 2.54371e+00 2172 2009 12 2.30399e+01 2.30331e+00 2345 2010 1 1.98177e+01 1.68699e+00 1345 2010 2 1.89069e+01 2.08095e+00 1250 2010 3 1.98918e+01 2.18854e+00 2268 2010 4 2.43622e+01 1.65377e+00 2075 2010 5 2.84008e+01 1.70466e+00 2920 2010 6 3.09324e+01 1.44235e+00 2255 2010 7 2.96880e+01 1.46849e+00 1594 2010 8 3.11981e+01 1.45485e+00 1951 2010 9 2.93176e+01 1.11136e+00 1876 2010 10 2.67226e+01 1.09863e+00 2881 2010 11 2.36298e+01 1.72262e+00 2190 2010 12 1.89090e+01 2.18143e+00 1609 2011 1 1.96782e+01 1.49364e+00 2194 2011 2 2.23037e+01 2.00012e+00 2817 2011 3 2.35677e+01 1.70529e+00 3447 2011 4 2.71405e+01 1.13278e+00 3563 2011 5 2.83134e+01 1.09371e+00 3281 2011 6 2.92031e+01 1.82947e+00 2006 2011 7 3.08453e+01 1.46584e+00 2043 2011 8 3.02081e+01 1.29723e+00 1386 2011 9 3.01707e+01 1.22550e+00 2206 2011 10 2.63972e+01 2.17863e+00 1059 2011 11 2.40857e+01 1.05379e+00 2885 2011 12 2.24450e+01 1.08968e+00 2960 2012 1 2.04430e+01 2.25377e+00 2067 2012 2 2.29308e+01 2.21589e+00 1501 2012 3 2.42652e+01 1.06768e+00 2935 2012 4 2.54117e+01 1.41492e+00 2417 2012 5 2.74812e+01 1.65107e+00 1937 2012 6 2.92234e+01 1.21857e+00 1489 2012 7 2.98349e+01 1.48871e+00 2017 2012 8 3.02813e+01 1.36001e+00 2014 2012 9 2.97976e+01 1.28187e+00 1745 2012 10 2.71013e+01 2.19049e+00 2255 2012 11 2.23567e+01 1.58292e+00 2749 2012 12 2.32945e+01 1.70354e+00 2389 2013 1 2.24911e+01 1.17106e+00 2137 2013 2 2.22723e+01 1.82441e+00 2217 2013 3 2.12899e+01 2.26800e+00 2254 2013 4 2.61463e+01 1.83759e+00 2680 2013 5 2.72641e+01 1.40724e+00 2864 2013 6 2.91144e+01 1.27321e+00 1872 2013 7 2.96242e+01 1.64393e+00 1790 2013 8 2.96257e+01 9.66062e-01 1417 2013 9 2.95150e+01 1.06063e+00 1524 2013 10 2.79622e+01 1.22806e+00 2731 2013 11 2.54539e+01 1.01628e+00 1636 2013 12 2.37678e+01 9.18543e-01 2351 2014 1 2.10096e+01 2.48039e+00 1922 2014 2 2.45209e+01 1.56566e+00 3337 2014 3 2.42609e+01 1.02833e+00 3199 2014 4 2.61888e+01 1.77266e+00 2868 2014 5 2.71224e+01 1.54621e+00 2426 2014 6 3.01240e+01 1.77538e+00 1991 2014 7 3.09138e+01 1.10187e+00 2063 2014 8 3.15074e+01 1.07584e+00 3266 2014 9 2.94688e+01 1.11270e+00 1420 2014 10 2.76293e+01 1.95441e+00 2861 2014 11 2.35715e+01 1.55722e+00 2174 2014 12 2.17276e+01 1.71637e+00 2307 2015 1 2.20355e+01 1.84145e+00 1993 2015 2 2.03945e+01 1.74481e+00 2927 2015 3 2.55080e+01 1.65812e+00 2906 2015 4 2.70942e+01 2.30357e+00 2811 2015 5 2.80096e+01 1.26374e+00 2924 2015 6 2.98413e+01 1.51055e+00 1707 2015 7 3.03041e+01 1.22532e+00 2199 2015 8 3.12203e+01 1.25613e+00 2107 2015 9 3.00708e+01 1.32483e+00 1444 2015 10 2.80314e+01 1.43512e+00 2143 2015 11 2.65444e+01 2.10672e+00 2894 2015 12 2.48434e+01 9.43662e-01 2067 2016 1 2.18345e+01 3.03881e+00 743 2016 2 2.08909e+01 1.84417e+00 1574 2016 3 2.43761e+01 2.23630e+00 1655 2016 4 2.60117e+01 1.26708e+00 2797 2016 5 2.79508e+01 1.87754e+00 2999 2016 6 2.99930e+01 1.31817e+00 2359 2016 7 3.05153e+01 1.25612e+00 2152 2016 8 3.06512e+01 1.46987e+00 1503 2016 9 3.06796e+01 1.36888e+00 2293 2016 10 2.74086e+01 1.42652e+00 2182 2016 11 2.37852e+01 1.45928e+00 3265 2016 12 2.47798e+01 8.49771e-01 2756 2017 1 2.22145e+01 1.65096e+00 2179 2017 2 2.31074e+01 1.62183e+00 2982 2017 3 2.29514e+01 1.66993e+00 2966 2017 4 2.50261e+01 1.57539e+00 2176 2017 5 2.77838e+01 1.72528e+00 2690 2017 6 2.97296e+01 1.46203e+00 1370 2017 7 3.05824e+01 1.04043e+00 2073 2017 8 3.12630e+01 1.47686e+00 2536 2017 9 3.01056e+01 1.19431e+00 2519 2017 10 2.70486e+01 2.25734e+00 2076 2017 11 2.47452e+01 1.19966e+00 3342 2017 12 2.29734e+01 1.90926e+00 3056 2018 1 1.98779e+01 1.36301e+00 1105 2018 2 2.40595e+01 1.40525e+00 3106 2018 3 2.28611e+01 1.81795e+00 3405 2018 4 2.65131e+01 1.46674e+00 2847 2018 5 2.62691e+01 1.32820e+00 748 2018 6 3.02841e+01 1.41430e+00 1544 2018 7 3.11021e+01 9.94028e-01 2078 2018 8 3.00605e+01 1.12075e+00 2356 2018 9 3.03985e+01 1.22104e+00 2014 2018 10 2.77811e+01 1.18503e+00 3139 2018 11 2.62677e+01 1.31118e+00 2146 2018 12 2.22309e+01 1.55969e+00 2227 2019 1 2.14868e+01 2.06562e+00 2411 2019 2 2.41867e+01 1.81013e+00 2778 2019 3 2.48183e+01 1.68804e+00 2777 2019 4 2.63945e+01 1.19849e+00 2642 2019 5 2.84539e+01 1.25962e+00 2973 2019 6 3.11175e+01 1.60042e+00 2438 2019 7 3.06963e+01 1.34987e+00 1850 2019 8 3.09360e+01 1.14446e+00 1620 2019 9 2.91371e+01 1.58023e+00 2104 2019 10 2.82982e+01 1.02226e+00 2234 2019 11 2.50020e+01 2.36435e+00 2717 2019 12 2.30261e+01 1.46596e+00 2529 2020 1 2.21521e+01 1.68971e+00 2468 2020 2 2.32824e+01 2.06019e+00 2448 2020 3 2.48210e+01 1.88448e+00 3341 2020 4 2.78751e+01 1.31049e+00 2561 2020 5 2.74068e+01 1.63819e+00 1932 2020 6 3.04353e+01 1.02729e+00 2125 2020 7 3.09808e+01 1.39088e+00 1919 2020 8 3.09665e+01 1.37189e+00 2166 2020 9 3.03156e+01 1.27314e+00 1801 2020 10 2.85057e+01 1.48575e+00 1337 2020 11 2.55585e+01 1.55499e+00 1665 2020 12 2.13159e+01 1.39431e+00 2456 2021 1 2.19161e+01 1.39768e+00 2475 2021 2 2.37004e+01 2.80113e+00 2941 2021 3 2.45329e+01 1.58599e+00 2948 2021 4 2.57660e+01 2.08398e+00 2880 2021 5 2.82415e+01 1.73541e+00 2456 2021 6 2.87010e+01 1.32527e+00 1270 2021 7 2.99160e+01 1.57519e+00 2502 2021 8 3.04585e+01 1.19143e+00 1941 2021 9 3.06557e+01 1.40651e+00 2278 2021 10 2.84724e+01 1.04292e+00 2654 2021 11 2.34309e+01 1.48106e+00 2039 2021 12 2.39135e+01 1.34376e+00 2979 2022 1 2.21955e+01 2.30863e+00 2129 2022 2 2.29847e+01 1.76630e+00 2382 2022 3 2.51704e+01 1.46117e+00 2954 2022 4 2.62964e+01 1.34495e+00 1622 2022 5 2.85956e+01 1.28848e+00 2693 2022 6 3.00048e+01 1.44713e+00 1907 2022 7 3.01736e+01 9.95589e-01 2286 2022 8 3.04793e+01 1.11379e+00 2425 2022 9 3.10559e+01 1.05198e+00 2541 2022 10 2.67887e+01 1.44128e+00 2473 2022 11 2.66695e+01 9.85463e-01 2717 2022 12 2.44994e+01 1.19729e+00 2507 2023 1 2.20473e+01 1.72865e+00 3290 2023 2 2.44226e+01 1.45465e+00 3695 2023 3 2.59078e+01 1.57574e+00 2957 2023 4 2.75659e+01 1.12470e+00 2757 2023 5 2.88175e+01 1.51534e+00 3035 2023 6 3.04702e+01 1.07615e+00 1724 2023 7 3.21530e+01 1.46743e+00 2045 2023 8 3.15474e+01 1.51609e+00 2054 2023 9 3.10137e+01 1.23368e+00 2340 2023 10 2.75753e+01 2.10093e+00 2581 2023 11 2.56068e+01 1.18594e+00 2208 2023 12 2.29189e+01 2.16596e+00 1539 2024 1 2.22497e+01 1.89741e+00 1444 2024 2 2.11689e+01 1.30629e+00 2524 2024 3 2.57065e+01 1.05604e+00 2176 2024 4 2.48269e+01 1.10184e+00 192