YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.90724e+01 4.55908e-01 135 2000 3 2.05939e+01 1.54277e+00 605 2000 4 2.15990e+01 1.54676e+00 605 2000 5 2.52483e+01 2.11017e+00 626 2000 6 2.74379e+01 1.12107e+00 379 2000 7 2.81731e+01 1.14660e+00 346 2000 8 2.92493e+01 5.56218e-01 256 2000 9 2.77577e+01 7.30463e-01 243 2000 10 2.33409e+01 1.91889e+00 687 2000 11 2.27890e+01 1.32260e+00 288 2000 12 nan nan 0 2001 1 1.19796e+01 3.45115e-01 61 2001 2 1.87315e+01 2.35235e+00 349 2001 3 1.54540e+01 9.31856e-01 255 2001 4 2.15620e+01 2.28562e+00 734 2001 5 2.55359e+01 9.77465e-01 771 2001 6 2.78343e+01 9.37257e-01 212 2001 7 2.95158e+01 1.50283e+00 70 2001 8 2.97695e+01 7.73293e-01 500 2001 9 2.64423e+01 1.68929e+00 320 2001 10 2.17349e+01 1.96159e+00 261 2001 11 1.94497e+01 1.28101e+00 787 2001 12 1.85622e+01 2.97277e+00 461 2002 1 1.79960e+01 1.23405e+00 187 2002 2 1.65098e+01 1.99146e+00 266 2002 3 2.03704e+01 1.43634e+00 128 2002 4 2.44841e+01 2.53773e+00 566 2002 5 2.54466e+01 2.20905e+00 697 2002 6 2.82390e+01 8.58978e-01 429 2002 7 2.93996e+01 1.46540e+00 1316 2002 8 2.90158e+01 1.31182e+00 1655 2002 9 2.82448e+01 1.68462e+00 1582 2002 10 2.65818e+01 2.29617e+00 2509 2002 11 2.04720e+01 2.47573e+00 1123 2002 12 1.44688e+01 1.08563e+00 426 2003 1 1.15126e+01 1.49924e+00 893 2003 2 1.46873e+01 2.15960e+00 988 2003 3 2.10861e+01 1.60763e+00 1372 2003 4 2.19731e+01 2.25503e+00 2493 2003 5 2.71388e+01 1.43913e+00 2375 2003 6 2.83849e+01 1.71901e+00 1763 2003 7 2.94399e+01 1.49992e+00 1242 2003 8 2.88191e+01 1.18202e+00 1664 2003 9 2.76080e+01 1.30302e+00 1993 2003 10 2.39069e+01 1.35688e+00 2419 2003 11 2.14508e+01 2.21771e+00 2335 2003 12 1.36043e+01 1.10510e+00 228 2004 1 1.37629e+01 1.80584e+00 1105 2004 2 1.34774e+01 1.53177e+00 580 2004 3 1.90463e+01 2.09521e+00 2302 2004 4 2.09609e+01 2.15870e+00 1877 2004 5 2.67050e+01 1.75432e+00 3320 2004 6 2.94101e+01 1.53287e+00 2220 2004 7 3.00225e+01 1.78157e+00 2045 2004 8 2.97928e+01 1.73027e+00 2092 2004 9 2.66555e+01 1.80215e+00 1745 2004 10 2.47684e+01 2.12988e+00 2318 2004 11 2.10216e+01 3.05277e+00 1400 2004 12 1.70820e+01 1.88384e+00 882 2005 1 1.56191e+01 2.59717e+00 825 2005 2 1.48082e+01 1.78166e+00 1110 2005 3 1.67237e+01 2.22749e+00 1618 2005 4 2.03334e+01 1.26731e+00 2556 2005 5 2.53150e+01 2.17473e+00 2596 2005 6 2.84371e+01 1.46025e+00 1895 2005 7 3.04711e+01 1.54119e+00 2253 2005 8 2.99665e+01 2.39306e+00 1766 2005 9 2.80735e+01 1.46195e+00 2370 2005 10 2.60086e+01 1.69418e+00 1827 2005 11 2.03566e+01 2.03378e+00 1559 2005 12 1.42972e+01 1.77418e+00 972 2006 1 1.52218e+01 2.25667e+00 1220 2006 2 1.42186e+01 1.82599e+00 1215 2006 3 1.88450e+01 1.87716e+00 2543 2006 4 2.31638e+01 2.20459e+00 2852 2006 5 2.52985e+01 2.16572e+00 2873 2006 6 2.86029e+01 1.51181e+00 2760 2006 7 3.00008e+01 1.55021e+00 2400 2006 8 3.04048e+01 1.35354e+00 2341 2006 9 2.83630e+01 1.98146e+00 2343 2006 10 2.39781e+01 2.34792e+00 2078 2006 11 1.85539e+01 2.02387e+00 1165 2006 12 1.60011e+01 1.87813e+00 605 2007 1 1.41937e+01 2.78451e+00 855 2007 2 1.45669e+01 2.18157e+00 1227 2007 3 1.97089e+01 2.44642e+00 2805 2007 4 2.12207e+01 2.32597e+00 2153 2007 5 2.43690e+01 1.33464e+00 3137 2007 6 2.84118e+01 1.44619e+00 2090 2007 7 3.02934e+01 1.75732e+00 1861 2007 8 3.06508e+01 1.46634e+00 2522 2007 9 2.80895e+01 1.79355e+00 1717 2007 10 2.58644e+01 1.51060e+00 1688 2007 11 1.86034e+01 1.76648e+00 2073 2007 12 1.77570e+01 2.21732e+00 1321 2008 1 1.43227e+01 2.57547e+00 586 2008 2 1.69397e+01 2.04532e+00 1311 2008 3 1.79974e+01 2.44567e+00 2100 2008 4 2.22842e+01 2.03824e+00 2205 2008 5 2.50422e+01 1.80204e+00 2661 2008 6 2.91143e+01 1.44370e+00 2008 2008 7 2.96799e+01 1.64387e+00 1738 2008 8 2.90935e+01 1.70171e+00 1535 2008 9 2.72235e+01 2.18329e+00 2261 2008 10 2.33839e+01 2.49818e+00 2459 2008 11 1.67945e+01 2.83806e+00 1634 2008 12 1.57653e+01 2.22963e+00 1240 2009 1 1.49248e+01 2.43405e+00 1090 2009 2 1.43893e+01 2.12123e+00 1321 2009 3 1.87485e+01 2.76538e+00 1903 2009 4 2.21579e+01 1.92194e+00 2292 2009 5 2.63025e+01 1.75577e+00 2422 2009 6 2.92961e+01 1.52039e+00 2496 2009 7 2.91250e+01 1.34084e+00 1976 2009 8 2.94847e+01 1.85015e+00 1975 2009 9 2.85524e+01 1.44316e+00 2262 2009 10 2.63681e+01 2.91038e+00 2388 2009 11 1.87272e+01 2.04187e+00 1462 2009 12 1.29800e+01 2.57578e+00 379 2010 1 1.40017e+01 2.66004e+00 738 2010 2 1.16715e+01 1.33243e+00 1359 2010 3 1.54238e+01 2.89411e+00 1963 2010 4 2.18934e+01 1.78973e+00 2264 2010 5 2.71191e+01 1.77127e+00 3094 2010 6 3.04019e+01 1.59759e+00 2597 2010 7 2.99584e+01 1.69027e+00 2474 2010 8 3.02441e+01 1.50088e+00 1243 2010 9 2.86809e+01 1.91321e+00 2314 2010 10 2.43339e+01 1.55590e+00 3323 2010 11 1.93677e+01 1.57589e+00 2074 2010 12 1.38022e+01 2.46250e+00 624 2011 1 1.18005e+01 1.40098e+00 930 2011 2 1.58536e+01 3.10878e+00 1249 2011 3 1.98676e+01 2.14449e+00 2187 2011 4 2.38953e+01 1.94765e+00 3321 2011 5 2.63335e+01 2.15877e+00 3560 2011 6 2.96283e+01 1.61362e+00 2350 2011 7 2.95114e+01 1.22632e+00 1931 2011 8 3.05704e+01 1.43686e+00 2649 2011 9 2.81806e+01 1.34624e+00 2704 2011 10 2.24085e+01 2.30215e+00 2336 2011 11 1.83430e+01 1.74529e+00 2119 2011 12 1.60504e+01 1.69161e+00 1298 2012 1 1.51683e+01 2.07070e+00 1862 2012 2 1.74329e+01 1.22971e+00 297 2012 3 2.20492e+01 2.25563e+00 2587 2012 4 2.33591e+01 1.80972e+00 3150 2012 5 2.72224e+01 1.06459e+00 3090 2012 6 2.76756e+01 1.86727e+00 1801 2012 7 2.95907e+01 1.86087e+00 2078 2012 8 2.91304e+01 1.59104e+00 1737 2012 9 2.80780e+01 1.81559e+00 1888 2012 10 2.46390e+01 2.09660e+00 2019 2012 11 1.77527e+01 1.26136e+00 1950 2012 12 1.70925e+01 2.15195e+00 1269 2013 1 1.57463e+01 2.38036e+00 1401 2013 2 1.59883e+01 2.40953e+00 1341 2013 3 1.60174e+01 2.12469e+00 2283 2013 4 2.14426e+01 2.07647e+00 2265 2013 5 2.51224e+01 2.56636e+00 2720 2013 6 2.84666e+01 1.59164e+00 2483 2013 7 2.80109e+01 1.94931e+00 1235 2013 8 3.01564e+01 1.96838e+00 2316 2013 9 2.92629e+01 1.80300e+00 2132 2013 10 2.45570e+01 2.47850e+00 2519 2013 11 1.98029e+01 2.23561e+00 879 2013 12 1.71254e+01 2.33894e+00 889 2014 1 1.26753e+01 1.28510e+00 724 2014 2 1.48074e+01 2.10522e+00 1126 2014 3 1.76071e+01 1.59509e+00 1675 2014 4 2.18486e+01 2.37286e+00 2093 2014 5 2.55210e+01 1.82442e+00 2331 2014 6 2.88703e+01 1.91712e+00 2286 2014 7 3.02960e+01 1.35050e+00 1769 2014 8 2.99558e+01 1.56430e+00 2605 2014 9 2.85216e+01 1.68774e+00 1036 2014 10 2.45993e+01 2.18663e+00 2891 2014 11 1.65021e+01 2.16393e+00 1092 2014 12 1.63141e+01 1.83781e+00 1452 2015 1 1.40142e+01 1.37585e+00 1443 2015 2 1.32144e+01 1.38073e+00 1351 2015 3 1.97550e+01 2.49999e+00 1460 2015 4 2.37468e+01 2.05109e+00 992 2015 5 2.68648e+01 2.25323e+00 3845 2015 6 2.99965e+01 1.44271e+00 2322 2015 7 2.92834e+01 1.96128e+00 1667 2015 8 3.03834e+01 1.52930e+00 1872 2015 9 2.74205e+01 2.03858e+00 1037 2015 10 2.40228e+01 1.81978e+00 1938 2015 11 2.29193e+01 3.57154e+00 1835 2015 12 1.83397e+01 2.39516e+00 895 2016 1 1.31430e+01 1.44002e+00 799 2016 2 1.43317e+01 1.96527e+00 1649 2016 3 1.84406e+01 2.46752e+00 1297 2016 4 2.23949e+01 2.22396e+00 2236 2016 5 2.60035e+01 2.23684e+00 2885 2016 6 2.97963e+01 1.52360e+00 2855 2016 7 3.14417e+01 1.34004e+00 2839 2016 8 3.03342e+01 1.61372e+00 2014 2016 9 2.91524e+01 1.38313e+00 2456 2016 10 2.47039e+01 1.90721e+00 2536 2016 11 1.96840e+01 2.78559e+00 2252 2016 12 1.78508e+01 2.10588e+00 1190 2017 1 1.66400e+01 2.20448e+00 1064 2017 2 1.82689e+01 1.90420e+00 1920 2017 3 1.96865e+01 3.08264e+00 2099 2017 4 2.31569e+01 2.07425e+00 2747 2017 5 2.52255e+01 1.89767e+00 2397 2017 6 2.89894e+01 2.06990e+00 1499 2017 7 3.01720e+01 1.74499e+00 1268 2017 8 2.99958e+01 1.77689e+00 1782 2017 9 2.82162e+01 1.34054e+00 2270 2017 10 2.48880e+01 3.20244e+00 2340 2017 11 1.96614e+01 1.70222e+00 2379 2017 12 1.77649e+01 3.14791e+00 1024 2018 1 1.22556e+01 2.29658e+00 1088 2018 2 2.11155e+01 3.66357e+00 1563 2018 3 1.80140e+01 2.29329e+00 2382 2018 4 2.16168e+01 1.58486e+00 2396 2018 5 2.55877e+01 1.76969e+00 1969 2018 6 2.96753e+01 1.84646e+00 1885 2018 7 2.99927e+01 1.18648e+00 1512 2018 8 2.97742e+01 1.33345e+00 1765 2018 9 3.03397e+01 1.18846e+00 2702 2018 10 2.66588e+01 2.47087e+00 2529 2018 11 1.86386e+01 3.51332e+00 694 2018 12 1.50140e+01 2.59255e+00 1115 2019 1 1.43060e+01 2.58985e+00 1328 2019 2 1.84154e+01 2.95097e+00 1404 2019 3 1.88141e+01 2.18377e+00 1765 2019 4 2.25212e+01 2.23243e+00 1971 2019 5 2.78619e+01 2.09823e+00 3009 2019 6 2.91800e+01 1.52751e+00 1848 2019 7 2.96593e+01 1.81387e+00 1511 2019 8 3.00541e+01 1.27915e+00 2008 2019 9 2.90335e+01 1.46827e+00 3154 2019 10 2.59240e+01 1.88327e+00 2144 2019 11 1.83929e+01 2.23480e+00 2156 2019 12 1.67931e+01 1.96361e+00 1666 2020 1 1.52718e+01 1.97062e+00 1779 2020 2 1.53255e+01 1.73270e+00 1747 2020 3 2.21771e+01 3.96468e+00 2629 2020 4 2.34746e+01 1.33093e+00 1623 2020 5 2.50075e+01 1.99338e+00 3130 2020 6 2.97477e+01 1.54763e+00 2126 2020 7 3.00696e+01 1.35817e+00 1619 2020 8 3.13961e+01 1.14441e+00 1159 2020 9 2.82541e+01 2.10100e+00 1454 2020 10 2.56719e+01 1.62118e+00 2176 2020 11 2.09082e+01 2.10320e+00 2493 2020 12 1.40721e+01 1.65067e+00 1684 2021 1 1.46618e+01 2.16425e+00 1752 2021 2 1.69845e+01 2.44809e+00 1599 2021 3 1.90802e+01 2.61339e+00 2159 2021 4 2.19038e+01 2.58902e+00 2430 2021 5 2.53199e+01 2.09190e+00 2558 2021 6 2.82336e+01 1.63957e+00 1124 2021 7 2.94732e+01 1.08182e+00 1259 2021 8 3.00373e+01 1.50017e+00 1677 2021 9 2.83151e+01 1.11013e+00 2040 2021 10 2.58588e+01 2.22694e+00 1852 2021 11 1.78675e+01 1.75068e+00 2409 2021 12 1.79778e+01 1.91845e+00 2531 2022 1 1.50206e+01 3.01730e+00 2215 2022 2 1.67003e+01 3.51656e+00 2560 2022 3 1.99471e+01 1.69420e+00 2407 2022 4 2.31390e+01 1.73857e+00 1751 2022 5 2.69955e+01 1.57004e+00 3032 2022 6 2.96547e+01 1.35151e+00 2205 2022 7 3.04292e+01 1.35361e+00 2138 2022 8 3.06709e+01 1.40509e+00 2010 2022 9 2.79499e+01 1.91807e+00 1877 2022 10 2.28807e+01 2.36207e+00 3091 2022 11 2.20551e+01 2.62657e+00 1590 2022 12 1.81696e+01 3.27517e+00 2586 2023 1 1.52009e+01 1.84151e+00 2528 2023 2 1.75704e+01 2.28689e+00 1988 2023 3 2.04617e+01 2.69366e+00 2956 2023 4 2.35018e+01 1.44769e+00 1947 2023 5 2.53938e+01 1.90802e+00 2259 2023 6 2.78982e+01 1.72216e+00 2013 2023 7 3.08650e+01 1.41285e+00 2701 2023 8 3.10851e+01 1.28904e+00 2736 2023 9 2.92576e+01 1.79532e+00 1977 2023 10 2.32314e+01 1.68336e+00 2424 2023 11 1.99388e+01 2.29709e+00 1543 2023 12 1.38397e+01 1.49444e+00 1334 2024 1 1.36975e+01 2.09072e+00 1147 2024 2 1.59415e+01 1.37915e+00 2108 2024 3 2.03346e+01 1.18646e+00 1748 2024 4 2.27693e+01 8.26564e-01 256