YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.67402e+01 3.75044e-01 128 2000 3 2.00704e+01 1.32430e+00 512 2000 4 2.15734e+01 1.79984e+00 654 2000 5 2.56195e+01 2.10566e+00 895 2000 6 2.74241e+01 5.90584e-01 237 2000 7 2.90717e+01 5.39023e-01 407 2000 8 2.98308e+01 5.02944e-01 355 2000 9 2.74148e+01 4.41867e-01 262 2000 10 2.32868e+01 1.06912e+00 978 2000 11 2.13490e+01 2.30423e+00 581 2000 12 1.52682e+01 1.81890e+00 362 2001 1 1.27124e+01 1.08745e-01 128 2001 2 1.71040e+01 8.35918e-01 283 2001 3 1.66049e+01 1.37979e+00 497 2001 4 2.03126e+01 2.01738e+00 711 2001 5 2.42692e+01 1.68132e+00 801 2001 6 2.74147e+01 1.03055e+00 309 2001 7 2.93301e+01 7.41803e-01 192 2001 8 2.87442e+01 1.02925e+00 601 2001 9 2.70777e+01 1.21253e+00 448 2001 10 2.30191e+01 1.71453e+00 604 2001 11 2.02007e+01 4.53924e-01 744 2001 12 1.90469e+01 2.19479e+00 583 2002 1 1.35230e+01 2.51877e-01 64 2002 2 1.52234e+01 4.08256e-01 384 2002 3 1.76389e+01 1.22870e+00 95 2002 4 2.35437e+01 2.32805e+00 622 2002 5 2.59700e+01 1.13506e+00 739 2002 6 2.80916e+01 7.31909e-01 443 2002 7 2.90191e+01 1.51777e+00 1697 2002 8 2.91312e+01 1.04025e+00 2168 2002 9 2.86029e+01 9.51326e-01 1976 2002 10 2.74063e+01 1.53095e+00 2651 2002 11 2.15946e+01 2.58425e+00 2164 2002 12 1.54689e+01 1.20146e+00 1259 2003 1 1.28170e+01 1.35960e+00 2053 2003 2 1.41430e+01 1.06087e+00 870 2003 3 2.04761e+01 1.19240e+00 1195 2003 4 2.13770e+01 1.82375e+00 2851 2003 5 2.65915e+01 1.38838e+00 2617 2003 6 2.81526e+01 1.51000e+00 2177 2003 7 2.93688e+01 1.38641e+00 1593 2003 8 2.89721e+01 1.00836e+00 1989 2003 9 2.83618e+01 9.92605e-01 2214 2003 10 2.44413e+01 1.00098e+00 2729 2003 11 2.21147e+01 1.58975e+00 2996 2003 12 1.54439e+01 1.84558e+00 1720 2004 1 1.38762e+01 7.45996e-01 1522 2004 2 1.38311e+01 9.31807e-01 632 2004 3 1.79917e+01 1.53946e+00 2886 2004 4 2.03094e+01 1.50318e+00 2520 2004 5 2.56537e+01 1.72611e+00 3634 2004 6 2.90879e+01 1.26581e+00 2227 2004 7 3.00953e+01 1.39005e+00 2346 2004 8 2.97297e+01 1.33662e+00 2304 2004 9 2.73356e+01 1.65011e+00 2214 2004 10 2.51518e+01 1.58945e+00 2750 2004 11 2.20850e+01 2.43110e+00 2145 2004 12 1.62307e+01 2.20246e+00 2154 2005 1 1.46471e+01 1.34159e+00 1156 2005 2 1.41688e+01 8.48171e-01 1014 2005 3 1.61235e+01 1.69978e+00 1891 2005 4 2.02341e+01 9.54104e-01 2619 2005 5 2.45026e+01 2.21675e+00 2931 2005 6 2.82394e+01 1.48186e+00 2449 2005 7 3.00714e+01 1.45524e+00 2293 2005 8 3.01603e+01 1.42536e+00 1786 2005 9 2.81390e+01 1.25875e+00 3023 2005 10 2.55966e+01 2.12922e+00 3345 2005 11 2.05724e+01 1.61045e+00 2369 2005 12 1.52245e+01 1.96608e+00 1496 2006 1 1.48196e+01 9.81724e-01 1517 2006 2 1.51355e+01 1.33327e+00 1610 2006 3 1.81770e+01 1.05449e+00 2579 2006 4 2.21156e+01 2.03323e+00 2926 2006 5 2.48940e+01 1.44832e+00 3384 2006 6 2.80197e+01 1.13583e+00 2991 2006 7 2.98797e+01 1.23516e+00 2537 2006 8 3.04282e+01 1.11621e+00 2636 2006 9 2.84649e+01 1.39562e+00 2682 2006 10 2.51072e+01 1.92467e+00 3157 2006 11 1.91149e+01 1.80909e+00 2262 2006 12 1.64855e+01 1.26123e+00 871 2007 1 1.52311e+01 1.40094e+00 1142 2007 2 1.39021e+01 7.74068e-01 1239 2007 3 1.78959e+01 1.47747e+00 2893 2007 4 2.05407e+01 1.42996e+00 2167 2007 5 2.41751e+01 8.68884e-01 3914 2007 6 2.75675e+01 1.66009e+00 2788 2007 7 2.97199e+01 1.93124e+00 1878 2007 8 3.05586e+01 1.37627e+00 2824 2007 9 2.87347e+01 1.51980e+00 2550 2007 10 2.65332e+01 8.77956e-01 1979 2007 11 2.01690e+01 1.75276e+00 3068 2007 12 1.79694e+01 1.14860e+00 1649 2008 1 1.43246e+01 1.58946e+00 1193 2008 2 1.59728e+01 1.25565e+00 1493 2008 3 1.76309e+01 1.19350e+00 2141 2008 4 2.14672e+01 1.17396e+00 3064 2008 5 2.44892e+01 2.11085e+00 3014 2008 6 2.87574e+01 1.21071e+00 2570 2008 7 2.92378e+01 1.74357e+00 2057 2008 8 2.80177e+01 1.60054e+00 1693 2008 9 2.77496e+01 1.44271e+00 2702 2008 10 2.43641e+01 1.54094e+00 3620 2008 11 1.87106e+01 1.54737e+00 2214 2008 12 1.56910e+01 1.12327e+00 1596 2009 1 1.49459e+01 1.43973e+00 1987 2009 2 1.42400e+01 1.03792e+00 1809 2009 3 1.78134e+01 2.03341e+00 2066 2009 4 2.15389e+01 1.52355e+00 2711 2009 5 2.57362e+01 1.28238e+00 2347 2009 6 2.79684e+01 1.10419e+00 2689 2009 7 2.87618e+01 1.24617e+00 2277 2009 8 2.99256e+01 1.21578e+00 2081 2009 9 2.85037e+01 9.75812e-01 2358 2009 10 2.62196e+01 2.19709e+00 2851 2009 11 2.02351e+01 1.52670e+00 1823 2009 12 1.58975e+01 1.58347e+00 541 2010 1 1.19963e+01 1.95073e+00 1458 2010 2 1.27860e+01 8.19278e-01 1779 2010 3 1.50355e+01 1.85447e+00 1923 2010 4 2.11152e+01 1.64507e+00 2302 2010 5 2.65736e+01 2.11169e+00 3404 2010 6 3.01652e+01 1.30775e+00 3076 2010 7 2.95935e+01 1.68766e+00 2673 2010 8 2.98550e+01 1.57085e+00 1316 2010 9 2.91141e+01 1.14352e+00 2806 2010 10 2.50135e+01 1.13434e+00 4186 2010 11 2.06691e+01 1.36586e+00 2805 2010 12 1.54702e+01 2.98706e+00 2249 2011 1 1.15291e+01 1.01075e+00 1620 2011 2 1.28864e+01 1.41076e+00 766 2011 3 1.85933e+01 1.48554e+00 2352 2011 4 2.31624e+01 1.47638e+00 3695 2011 5 2.56569e+01 1.43515e+00 3848 2011 6 2.92796e+01 1.24251e+00 2580 2011 7 2.96693e+01 1.26568e+00 2244 2011 8 3.07571e+01 9.06289e-01 2740 2011 9 2.84888e+01 1.09793e+00 2684 2011 10 2.45007e+01 1.77450e+00 2928 2011 11 1.94262e+01 1.12243e+00 2138 2011 12 1.68556e+01 1.32235e+00 1525 2012 1 1.55479e+01 9.41636e-01 2179 2012 2 1.62965e+01 1.00285e+00 967 2012 3 2.07635e+01 2.07575e+00 2768 2012 4 2.32974e+01 7.75302e-01 3462 2012 5 2.63503e+01 1.17445e+00 3436 2012 6 2.74273e+01 7.63066e-01 2481 2012 7 2.92684e+01 1.40722e+00 2317 2012 8 2.90490e+01 1.53539e+00 1554 2012 9 2.85184e+01 1.17367e+00 2659 2012 10 2.51533e+01 1.92314e+00 2997 2012 11 1.91121e+01 1.27342e+00 2787 2012 12 1.69962e+01 1.92619e+00 1662 2013 1 1.54078e+01 9.79743e-01 1094 2013 2 1.61781e+01 1.11648e+00 1878 2013 3 1.61298e+01 1.15728e+00 2559 2013 4 2.07278e+01 1.74353e+00 2158 2013 5 2.44827e+01 1.98286e+00 2715 2013 6 2.80329e+01 1.43051e+00 2365 2013 7 2.91604e+01 1.65604e+00 1132 2013 8 3.02422e+01 1.37181e+00 2686 2013 9 2.95275e+01 1.77540e+00 3003 2013 10 2.56450e+01 1.48325e+00 2536 2013 11 2.08330e+01 2.06664e+00 1692 2013 12 1.74762e+01 1.39470e+00 1452 2014 1 1.30217e+01 1.43659e+00 1288 2014 2 1.46245e+01 1.77506e+00 1193 2014 3 1.68145e+01 1.09089e+00 1988 2014 4 2.06099e+01 1.69782e+00 2384 2014 5 2.52648e+01 1.40766e+00 2417 2014 6 2.86937e+01 1.64786e+00 2405 2014 7 2.95659e+01 1.37133e+00 2367 2014 8 2.98010e+01 1.16197e+00 2943 2014 9 2.86019e+01 1.73180e+00 1424 2014 10 2.55521e+01 1.54873e+00 3520 2014 11 1.89401e+01 2.07162e+00 2462 2014 12 1.57428e+01 1.32480e+00 1562 2015 1 1.47527e+01 1.02506e+00 1765 2015 2 1.37384e+01 1.14330e+00 1752 2015 3 1.89793e+01 1.86930e+00 1729 2015 4 2.27581e+01 2.10131e+00 1198 2015 5 2.65677e+01 1.64288e+00 4225 2015 6 2.98026e+01 1.01141e+00 2565 2015 7 2.95789e+01 1.60104e+00 1611 2015 8 3.02161e+01 1.77971e+00 2004 2015 9 2.81319e+01 1.84793e+00 1354 2015 10 2.43872e+01 1.11019e+00 2564 2015 11 2.25898e+01 2.17268e+00 2224 2015 12 1.89275e+01 9.75632e-01 1189 2016 1 1.55906e+01 1.95010e+00 1681 2016 2 1.45641e+01 1.19211e+00 1641 2016 3 1.84026e+01 1.73374e+00 1520 2016 4 2.18069e+01 1.98076e+00 2149 2016 5 2.56766e+01 1.41061e+00 3192 2016 6 2.93663e+01 1.02810e+00 2679 2016 7 3.10590e+01 1.10028e+00 3139 2016 8 3.03990e+01 1.11894e+00 2493 2016 9 2.93151e+01 1.10511e+00 2487 2016 10 2.58798e+01 1.73173e+00 2784 2016 11 2.15055e+01 2.10937e+00 2818 2016 12 1.81875e+01 1.27989e+00 1680 2017 1 1.65752e+01 1.37208e+00 1448 2017 2 1.77623e+01 1.54367e+00 2090 2017 3 1.85303e+01 1.52311e+00 2734 2017 4 2.28675e+01 1.12623e+00 2786 2017 5 2.52243e+01 1.14797e+00 2207 2017 6 2.84428e+01 1.53202e+00 1838 2017 7 3.05368e+01 1.27171e+00 1791 2017 8 3.01681e+01 1.40412e+00 2477 2017 9 2.82558e+01 1.33622e+00 2644 2017 10 2.56392e+01 1.71673e+00 3530 2017 11 2.10206e+01 1.10694e+00 3060 2017 12 1.75814e+01 1.97300e+00 1513 2018 1 1.23304e+01 9.55297e-01 1487 2018 2 1.85897e+01 2.26088e+00 1011 2018 3 1.83904e+01 1.33799e+00 2652 2018 4 2.10521e+01 1.18834e+00 2354 2018 5 2.47090e+01 1.89984e+00 2467 2018 6 2.87165e+01 1.74955e+00 1942 2018 7 3.02244e+01 1.21676e+00 2070 2018 8 3.03301e+01 1.35433e+00 1888 2018 9 3.03900e+01 1.23487e+00 3414 2018 10 2.72483e+01 2.19986e+00 2853 2018 11 2.07151e+01 1.94273e+00 1003 2018 12 1.63250e+01 1.51868e+00 1014 2019 1 1.56371e+01 1.55075e+00 1733 2019 2 1.70007e+01 2.42422e+00 734 2019 3 1.84924e+01 1.25293e+00 2031 2019 4 2.18054e+01 1.80788e+00 2357 2019 5 2.72054e+01 1.98975e+00 3473 2019 6 2.92087e+01 1.02243e+00 2063 2019 7 2.97868e+01 1.53049e+00 1995 2019 8 3.03205e+01 9.81435e-01 2265 2019 9 2.93325e+01 9.52040e-01 4001 2019 10 2.69761e+01 1.76090e+00 2681 2019 11 1.97003e+01 2.45013e+00 2115 2019 12 1.68504e+01 9.94807e-01 1684 2020 1 1.62521e+01 9.61070e-01 1927 2020 2 1.55477e+01 8.18453e-01 1843 2020 3 2.06447e+01 3.19574e+00 2638 2020 4 2.34579e+01 1.04409e+00 2075 2020 5 2.47060e+01 1.33163e+00 3003 2020 6 2.91994e+01 1.01686e+00 2469 2020 7 2.96444e+01 1.19502e+00 2144 2020 8 3.09275e+01 1.01473e+00 1434 2020 9 2.87109e+01 1.96933e+00 1702 2020 10 2.55838e+01 9.18905e-01 2487 2020 11 2.23333e+01 1.51081e+00 3363 2020 12 1.60946e+01 1.73042e+00 2778 2021 1 1.42075e+01 1.13366e+00 1916 2021 2 1.58860e+01 1.44701e+00 1968 2021 3 1.84822e+01 1.19951e+00 2490 2021 4 2.13832e+01 1.16890e+00 2557 2021 5 2.52510e+01 1.48468e+00 2860 2021 6 2.78125e+01 1.11209e+00 1833 2021 7 2.95451e+01 9.50266e-01 1387 2021 8 3.03789e+01 1.13286e+00 1761 2021 9 2.84948e+01 1.19162e+00 2110 2021 10 2.63243e+01 1.52125e+00 2618 2021 11 1.98404e+01 1.28834e+00 2955 2021 12 1.82300e+01 1.03426e+00 2385 2022 1 1.64085e+01 1.96603e+00 2560 2022 2 1.51330e+01 1.84640e+00 2078 2022 3 1.90541e+01 1.08890e+00 2737 2022 4 2.27160e+01 1.16520e+00 1958 2022 5 2.64077e+01 1.45307e+00 2781 2022 6 2.96978e+01 1.22207e+00 2513 2022 7 3.04883e+01 1.08124e+00 1877 2022 8 3.09058e+01 1.17884e+00 1935 2022 9 2.84984e+01 1.66587e+00 2044 2022 10 2.40079e+01 1.27042e+00 3258 2022 11 2.17644e+01 1.99573e+00 1701 2022 12 1.75320e+01 2.29929e+00 3353 2023 1 1.48200e+01 6.72318e-01 2321 2023 2 1.66993e+01 1.19426e+00 2025 2023 3 2.03263e+01 1.41807e+00 3104 2023 4 2.24811e+01 9.88104e-01 2194 2023 5 2.50020e+01 1.73230e+00 2471 2023 6 2.72572e+01 1.44847e+00 2508 2023 7 2.99915e+01 1.31469e+00 2596 2023 8 3.12268e+01 9.93272e-01 2860 2023 9 2.95614e+01 1.25742e+00 2718 2023 10 2.44730e+01 1.30470e+00 2970 2023 11 2.10682e+01 1.33020e+00 1989 2023 12 1.52587e+01 1.43018e+00 1518 2024 1 1.34870e+01 1.02391e+00 1374 2024 2 1.49813e+01 8.06440e-01 1865 2024 3 1.93908e+01 1.20370e+00 1860 2024 4 2.10360e+01 3.18816e-01 96