YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.74132e+01 4.10593e-01 104 2000 3 2.00472e+01 1.31742e+00 759 2000 4 2.15125e+01 1.38152e+00 737 2000 5 2.54978e+01 2.08514e+00 798 2000 6 2.77813e+01 8.46460e-01 438 2000 7 2.87489e+01 5.57857e-01 509 2000 8 2.96469e+01 5.48412e-01 256 2000 9 2.69545e+01 1.33331e+00 320 2000 10 2.32298e+01 1.47132e+00 864 2000 11 2.08422e+01 2.86945e+00 514 2000 12 1.51776e+01 1.10044e+00 157 2001 1 1.22156e+01 1.07577e-01 70 2001 2 1.74084e+01 1.12778e+00 329 2001 3 1.66985e+01 1.59788e+00 442 2001 4 2.07144e+01 1.98475e+00 840 2001 5 2.49430e+01 1.07967e+00 724 2001 6 2.70864e+01 8.25587e-01 254 2001 7 2.90574e+01 1.20210e+00 278 2001 8 2.85123e+01 1.03933e+00 564 2001 9 2.71806e+01 1.76281e+00 353 2001 10 2.25663e+01 1.70064e+00 593 2001 11 1.96998e+01 5.69881e-01 770 2001 12 1.90716e+01 2.48986e+00 507 2002 1 1.66584e+01 1.66709e+00 38 2002 2 1.55022e+01 1.17112e+00 373 2002 3 1.87475e+01 2.16688e+00 192 2002 4 2.42470e+01 2.26536e+00 521 2002 5 2.62371e+01 1.29328e+00 677 2002 6 2.81686e+01 8.14170e-01 485 2002 7 2.89619e+01 1.51178e+00 1494 2002 8 2.90804e+01 9.17092e-01 2341 2002 9 2.84449e+01 9.69623e-01 2140 2002 10 2.69996e+01 1.80393e+00 2766 2002 11 2.06517e+01 2.83305e+00 2241 2002 12 1.47628e+01 1.05557e+00 1211 2003 1 1.20458e+01 1.33824e+00 1908 2003 2 1.42497e+01 1.43579e+00 859 2003 3 2.06517e+01 1.11999e+00 1346 2003 4 2.15296e+01 1.72684e+00 2659 2003 5 2.67470e+01 1.39863e+00 2717 2003 6 2.82045e+01 1.52701e+00 1809 2003 7 2.94173e+01 1.39503e+00 1271 2003 8 2.89284e+01 1.21157e+00 1825 2003 9 2.84851e+01 1.02885e+00 1705 2003 10 2.40875e+01 1.06705e+00 2592 2003 11 2.15767e+01 1.89900e+00 3124 2003 12 1.51531e+01 1.79147e+00 1242 2004 1 1.33847e+01 8.99718e-01 1372 2004 2 1.37412e+01 7.22585e-01 510 2004 3 1.83276e+01 1.66174e+00 2625 2004 4 2.02026e+01 1.69816e+00 2592 2004 5 2.61480e+01 1.76683e+00 3557 2004 6 2.92157e+01 1.11191e+00 2253 2004 7 2.98859e+01 1.50989e+00 2101 2004 8 2.98024e+01 1.33188e+00 2104 2004 9 2.72193e+01 1.76838e+00 1955 2004 10 2.48911e+01 1.43960e+00 2532 2004 11 2.22006e+01 2.53467e+00 1961 2004 12 1.57110e+01 2.64018e+00 1677 2005 1 1.51056e+01 2.17212e+00 1261 2005 2 1.40545e+01 8.79649e-01 963 2005 3 1.62418e+01 1.42151e+00 1650 2005 4 2.01760e+01 1.16711e+00 2749 2005 5 2.46607e+01 2.29943e+00 3188 2005 6 2.84791e+01 1.43885e+00 2225 2005 7 2.98684e+01 2.02034e+00 2379 2005 8 2.96773e+01 1.99250e+00 1972 2005 9 2.81870e+01 9.77020e-01 2815 2005 10 2.49691e+01 2.53691e+00 3056 2005 11 1.99792e+01 1.84135e+00 1999 2005 12 1.48862e+01 1.88613e+00 1428 2006 1 1.46808e+01 1.08064e+00 1426 2006 2 1.45143e+01 1.70112e+00 1572 2006 3 1.84739e+01 1.15485e+00 2654 2006 4 2.26240e+01 2.10325e+00 3007 2006 5 2.50727e+01 1.63814e+00 3110 2006 6 2.81840e+01 1.32619e+00 2847 2006 7 2.98741e+01 1.17496e+00 2747 2006 8 3.05221e+01 1.10045e+00 2569 2006 9 2.84228e+01 1.40620e+00 2762 2006 10 2.46350e+01 1.92240e+00 3142 2006 11 1.87726e+01 1.60940e+00 1744 2006 12 1.60516e+01 1.39176e+00 728 2007 1 1.46652e+01 1.38160e+00 975 2007 2 1.35965e+01 9.91136e-01 1269 2007 3 1.83934e+01 1.65652e+00 2946 2007 4 2.06419e+01 1.56649e+00 1929 2007 5 2.43172e+01 9.74371e-01 3638 2007 6 2.76992e+01 1.65012e+00 2673 2007 7 2.99198e+01 1.94926e+00 1774 2007 8 3.04976e+01 1.23724e+00 2508 2007 9 2.86497e+01 1.50923e+00 2447 2007 10 2.60744e+01 1.10412e+00 1979 2007 11 1.93555e+01 1.76763e+00 2967 2007 12 1.75601e+01 1.30880e+00 1296 2008 1 1.35465e+01 1.66216e+00 971 2008 2 1.60721e+01 9.93920e-01 1412 2008 3 1.77754e+01 1.73615e+00 2199 2008 4 2.17431e+01 1.08816e+00 2635 2008 5 2.51147e+01 1.69503e+00 2648 2008 6 2.86959e+01 1.38825e+00 2305 2008 7 2.96273e+01 1.25264e+00 1877 2008 8 2.83025e+01 1.37938e+00 1508 2008 9 2.75141e+01 1.70980e+00 2420 2008 10 2.39277e+01 1.89482e+00 3292 2008 11 1.78553e+01 1.87339e+00 2268 2008 12 1.53513e+01 1.08007e+00 1475 2009 1 1.46798e+01 1.94143e+00 1702 2009 2 1.38487e+01 1.48405e+00 1843 2009 3 1.76124e+01 2.43660e+00 2101 2009 4 2.16539e+01 1.65337e+00 2580 2009 5 2.58873e+01 1.33162e+00 2454 2009 6 2.84550e+01 1.12496e+00 2650 2009 7 2.88405e+01 1.30869e+00 2101 2009 8 2.99632e+01 1.45233e+00 2063 2009 9 2.84976e+01 8.31266e-01 2328 2009 10 2.58429e+01 2.48568e+00 2864 2009 11 1.97735e+01 1.28145e+00 1613 2009 12 1.42527e+01 1.52857e+00 452 2010 1 1.15372e+01 2.46767e+00 1309 2010 2 1.23290e+01 1.00790e+00 1739 2010 3 1.51914e+01 1.97987e+00 1986 2010 4 2.14356e+01 1.33240e+00 2516 2010 5 2.66500e+01 2.16502e+00 3214 2010 6 3.02908e+01 1.21108e+00 2658 2010 7 2.97915e+01 1.73817e+00 2863 2010 8 2.98878e+01 1.47230e+00 1400 2010 9 2.91447e+01 1.34111e+00 2790 2010 10 2.46632e+01 8.88590e-01 4183 2010 11 2.01132e+01 1.31394e+00 3120 2010 12 1.42002e+01 3.21777e+00 1979 2011 1 1.11535e+01 9.96685e-01 1537 2011 2 1.36953e+01 1.99400e+00 788 2011 3 1.89562e+01 1.27621e+00 2194 2011 4 2.34158e+01 1.49800e+00 3493 2011 5 2.57706e+01 1.45026e+00 3985 2011 6 2.93999e+01 1.48315e+00 2248 2011 7 2.96761e+01 1.10845e+00 2023 2011 8 3.06237e+01 1.30025e+00 2964 2011 9 2.85012e+01 9.44778e-01 2237 2011 10 2.39802e+01 1.79957e+00 2634 2011 11 1.87842e+01 1.04170e+00 2037 2011 12 1.65944e+01 7.20755e-01 1285 2012 1 1.51121e+01 1.17409e+00 2146 2012 2 1.59462e+01 1.40310e+00 814 2012 3 2.10339e+01 2.18203e+00 2734 2012 4 2.32828e+01 9.42947e-01 3336 2012 5 2.65797e+01 1.15674e+00 3437 2012 6 2.75365e+01 1.01092e+00 2302 2012 7 2.92902e+01 2.00296e+00 2081 2012 8 2.88800e+01 1.33514e+00 1516 2012 9 2.81892e+01 1.33503e+00 2211 2012 10 2.46800e+01 2.50380e+00 2775 2012 11 1.86819e+01 9.95091e-01 2402 2012 12 1.69378e+01 2.10077e+00 1718 2013 1 1.51798e+01 1.04147e+00 1217 2013 2 1.61277e+01 1.17563e+00 1718 2013 3 1.58529e+01 1.29466e+00 2431 2013 4 2.10195e+01 1.94671e+00 2170 2013 5 2.45892e+01 1.98041e+00 2464 2013 6 2.80191e+01 1.37339e+00 2596 2013 7 2.86799e+01 2.21347e+00 1181 2013 8 3.03881e+01 1.40030e+00 2387 2013 9 2.95749e+01 1.59154e+00 2782 2013 10 2.51486e+01 1.90767e+00 2537 2013 11 2.01759e+01 2.11093e+00 1664 2013 12 1.67215e+01 1.58328e+00 1078 2014 1 1.26031e+01 1.17613e+00 967 2014 2 1.50843e+01 2.03700e+00 1032 2014 3 1.69910e+01 1.30619e+00 1708 2014 4 2.10938e+01 1.79226e+00 2208 2014 5 2.52884e+01 1.62314e+00 2545 2014 6 2.86004e+01 1.71766e+00 2234 2014 7 3.00105e+01 1.31430e+00 2282 2014 8 2.98821e+01 1.00719e+00 2773 2014 9 2.87144e+01 1.17430e+00 1328 2014 10 2.52736e+01 1.68046e+00 3349 2014 11 1.77498e+01 2.38605e+00 2199 2014 12 1.58875e+01 1.21659e+00 1609 2015 1 1.44705e+01 9.82271e-01 1688 2015 2 1.34688e+01 1.17450e+00 1543 2015 3 1.89572e+01 2.21194e+00 1630 2015 4 2.29370e+01 1.71233e+00 1124 2015 5 2.67986e+01 1.67833e+00 3754 2015 6 2.98922e+01 1.32098e+00 2465 2015 7 2.96538e+01 1.39713e+00 1552 2015 8 3.03087e+01 1.48164e+00 2369 2015 9 2.82427e+01 1.80289e+00 1197 2015 10 2.41036e+01 1.21567e+00 2479 2015 11 2.21626e+01 2.77759e+00 2048 2015 12 1.86655e+01 1.21977e+00 1130 2016 1 1.49827e+01 2.05774e+00 1349 2016 2 1.40948e+01 1.53591e+00 1426 2016 3 1.85286e+01 2.01289e+00 1656 2016 4 2.19138e+01 1.91545e+00 2146 2016 5 2.59513e+01 1.39481e+00 3267 2016 6 2.92976e+01 1.24208e+00 2641 2016 7 3.13556e+01 1.02632e+00 2906 2016 8 3.02912e+01 1.23245e+00 2333 2016 9 2.93646e+01 1.08742e+00 2797 2016 10 2.56059e+01 1.72604e+00 2673 2016 11 2.10106e+01 2.26293e+00 2833 2016 12 1.78101e+01 1.82418e+00 1763 2017 1 1.63988e+01 1.45792e+00 1349 2017 2 1.76777e+01 1.79179e+00 1959 2017 3 1.86648e+01 1.69538e+00 2758 2017 4 2.29729e+01 1.21041e+00 2889 2017 5 2.51035e+01 1.32071e+00 2272 2017 6 2.85836e+01 1.57483e+00 1798 2017 7 3.03302e+01 1.58881e+00 1771 2017 8 3.02217e+01 1.39687e+00 2001 2017 9 2.81714e+01 1.45184e+00 2422 2017 10 2.53934e+01 2.11410e+00 3285 2017 11 2.03333e+01 1.39266e+00 3043 2017 12 1.69291e+01 2.10931e+00 1333 2018 1 1.13073e+01 1.02523e+00 1408 2018 2 1.92807e+01 2.58819e+00 1078 2018 3 1.82804e+01 1.55703e+00 2626 2018 4 2.10826e+01 1.31468e+00 2304 2018 5 2.49476e+01 1.57717e+00 2338 2018 6 2.92427e+01 1.79173e+00 1760 2018 7 3.00247e+01 1.14139e+00 1847 2018 8 3.02099e+01 1.31005e+00 1656 2018 9 3.04684e+01 9.97756e-01 3267 2018 10 2.69107e+01 2.42675e+00 2718 2018 11 1.99307e+01 1.88017e+00 1041 2018 12 1.59896e+01 1.45212e+00 1035 2019 1 1.54978e+01 1.63405e+00 1598 2019 2 1.73407e+01 2.29048e+00 739 2019 3 1.84729e+01 1.24059e+00 1939 2019 4 2.19956e+01 1.70577e+00 2250 2019 5 2.73082e+01 1.89475e+00 3593 2019 6 2.92286e+01 1.09520e+00 1943 2019 7 2.98147e+01 1.47772e+00 1925 2019 8 3.03169e+01 9.73113e-01 2123 2019 9 2.92025e+01 1.01503e+00 3785 2019 10 2.66829e+01 1.83511e+00 2487 2019 11 1.87830e+01 2.46472e+00 2194 2019 12 1.66399e+01 1.38448e+00 1466 2020 1 1.58581e+01 1.29277e+00 1917 2020 2 1.56831e+01 1.07664e+00 1811 2020 3 2.09710e+01 3.36796e+00 2647 2020 4 2.38223e+01 9.85194e-01 1899 2020 5 2.47416e+01 1.41184e+00 2940 2020 6 2.91967e+01 1.26099e+00 2448 2020 7 2.98387e+01 1.29169e+00 2431 2020 8 3.10299e+01 1.07134e+00 1644 2020 9 2.82727e+01 1.93756e+00 1774 2020 10 2.55937e+01 8.82488e-01 2581 2020 11 2.19129e+01 1.78410e+00 3067 2020 12 1.52887e+01 1.36990e+00 2583 2021 1 1.39915e+01 1.33911e+00 1932 2021 2 1.60917e+01 1.75843e+00 1807 2021 3 1.85918e+01 1.55093e+00 2526 2021 4 2.15384e+01 1.22191e+00 2498 2021 5 2.53971e+01 1.34112e+00 2782 2021 6 2.78307e+01 1.19086e+00 1582 2021 7 2.94166e+01 1.26820e+00 1360 2021 8 3.01497e+01 1.49526e+00 1894 2021 9 2.86905e+01 1.15194e+00 2266 2021 10 2.60099e+01 1.61298e+00 2307 2021 11 1.91238e+01 1.45194e+00 2738 2021 12 1.79261e+01 1.05673e+00 2452 2022 1 1.59713e+01 2.35667e+00 2596 2022 2 1.52634e+01 2.14389e+00 2158 2022 3 1.91549e+01 9.90342e-01 2599 2022 4 2.29056e+01 1.20907e+00 2161 2022 5 2.65803e+01 1.41002e+00 2992 2022 6 2.98798e+01 1.08433e+00 2741 2022 7 3.04657e+01 1.03831e+00 2084 2022 8 3.06912e+01 1.28802e+00 2151 2022 9 2.82313e+01 1.80900e+00 1863 2022 10 2.36451e+01 1.26032e+00 3344 2022 11 2.14481e+01 2.14873e+00 1643 2022 12 1.71765e+01 2.74684e+00 3239 2023 1 1.45974e+01 8.57878e-01 2482 2023 2 1.67476e+01 1.31058e+00 2025 2023 3 2.03234e+01 1.74474e+00 2880 2023 4 2.27444e+01 9.24767e-01 2176 2023 5 2.52576e+01 1.67181e+00 2382 2023 6 2.73270e+01 1.59666e+00 2228 2023 7 3.02793e+01 1.31968e+00 2758 2023 8 3.11874e+01 9.53337e-01 2908 2023 9 2.92939e+01 1.37098e+00 2226 2023 10 2.38997e+01 1.34776e+00 2811 2023 11 2.05690e+01 1.50031e+00 2005 2023 12 1.46818e+01 1.31418e+00 1608 2024 1 1.30359e+01 1.55393e+00 1369 2024 2 1.50778e+01 7.99909e-01 1867 2024 3 1.95468e+01 1.29489e+00 1960 2024 4 2.14624e+01 9.87312e-01 132