YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.73104e+01 2.02881e-01 128 2000 3 2.04088e+01 1.40758e+00 607 2000 4 2.20448e+01 9.00640e-01 583 2000 5 2.57809e+01 1.88213e+00 971 2000 6 2.76622e+01 6.77270e-01 430 2000 7 2.87934e+01 8.87474e-01 453 2000 8 2.92519e+01 7.70702e-01 193 2000 9 2.76400e+01 9.48925e-01 354 2000 10 2.31416e+01 1.62073e+00 904 2000 11 2.12239e+01 2.60554e+00 481 2000 12 1.54031e+01 1.37724e+00 158 2001 1 1.23935e+01 6.67299e-02 64 2001 2 1.72307e+01 1.41730e+00 347 2001 3 1.68077e+01 1.78157e+00 484 2001 4 2.09299e+01 1.95925e+00 709 2001 5 2.50512e+01 1.32369e+00 689 2001 6 2.76727e+01 6.51824e-01 256 2001 7 2.94520e+01 7.71385e-01 243 2001 8 2.92881e+01 6.86024e-01 422 2001 9 2.70697e+01 1.68649e+00 457 2001 10 2.25295e+01 1.81275e+00 577 2001 11 1.97595e+01 7.46217e-01 679 2001 12 1.89996e+01 2.34632e+00 603 2002 1 1.70026e+01 1.38777e+00 58 2002 2 1.50847e+01 5.92869e-01 340 2002 3 2.02362e+01 7.28147e-01 152 2002 4 2.46358e+01 1.84368e+00 512 2002 5 2.63308e+01 1.37940e+00 709 2002 6 2.83337e+01 9.16828e-01 374 2002 7 2.91162e+01 1.49876e+00 1699 2002 8 2.90596e+01 8.83083e-01 2197 2002 9 2.81178e+01 1.15344e+00 2158 2002 10 2.66880e+01 1.91564e+00 2913 2002 11 2.08579e+01 2.75288e+00 2163 2002 12 1.48348e+01 1.02749e+00 1208 2003 1 1.22248e+01 1.26758e+00 1872 2003 2 1.43586e+01 1.72304e+00 824 2003 3 2.05519e+01 1.23735e+00 1285 2003 4 2.16816e+01 1.77139e+00 2617 2003 5 2.69381e+01 1.45018e+00 2588 2003 6 2.84663e+01 1.43206e+00 1732 2003 7 2.97756e+01 1.04928e+00 1216 2003 8 2.85944e+01 1.67279e+00 1950 2003 9 2.84133e+01 1.03058e+00 1791 2003 10 2.40730e+01 1.08011e+00 2687 2003 11 2.17983e+01 1.71040e+00 2950 2003 12 1.51582e+01 1.70644e+00 1555 2004 1 1.35004e+01 8.77312e-01 1484 2004 2 1.38695e+01 7.50816e-01 705 2004 3 1.85285e+01 1.68069e+00 2655 2004 4 2.01540e+01 1.89065e+00 2175 2004 5 2.60268e+01 1.89148e+00 3639 2004 6 2.94223e+01 1.19776e+00 2499 2004 7 3.00757e+01 1.47016e+00 2106 2004 8 2.96143e+01 1.59024e+00 2119 2004 9 2.71393e+01 1.84738e+00 2111 2004 10 2.48630e+01 1.66681e+00 2597 2004 11 2.20329e+01 2.57369e+00 2260 2004 12 1.61477e+01 2.51028e+00 1748 2005 1 1.47770e+01 1.62079e+00 1036 2005 2 1.41687e+01 9.41079e-01 1032 2005 3 1.63318e+01 1.67562e+00 1689 2005 4 2.03335e+01 1.07530e+00 2815 2005 5 2.47613e+01 2.25581e+00 3219 2005 6 2.84483e+01 1.28549e+00 2316 2005 7 3.01495e+01 1.81826e+00 2466 2005 8 3.00029e+01 1.77837e+00 1920 2005 9 2.81162e+01 1.23347e+00 2829 2005 10 2.49484e+01 2.55981e+00 3117 2005 11 2.00464e+01 1.70545e+00 1901 2005 12 1.50951e+01 1.86329e+00 1516 2006 1 1.49420e+01 1.07610e+00 1669 2006 2 1.43853e+01 1.27029e+00 1533 2006 3 1.84239e+01 1.20012e+00 2864 2006 4 2.24750e+01 2.10366e+00 2866 2006 5 2.51347e+01 1.47358e+00 3211 2006 6 2.82201e+01 1.23732e+00 2909 2006 7 2.98362e+01 1.54232e+00 2519 2006 8 3.02523e+01 1.04769e+00 2484 2006 9 2.86721e+01 1.45256e+00 2798 2006 10 2.47444e+01 1.95676e+00 3026 2006 11 1.88610e+01 1.79161e+00 1843 2006 12 1.58107e+01 1.33959e+00 842 2007 1 1.48625e+01 1.23528e+00 897 2007 2 1.36840e+01 9.03689e-01 1092 2007 3 1.84779e+01 1.62704e+00 2881 2007 4 2.06853e+01 1.74406e+00 2135 2007 5 2.41623e+01 1.03580e+00 3636 2007 6 2.77123e+01 1.91006e+00 2517 2007 7 2.98690e+01 1.65247e+00 2048 2007 8 3.04987e+01 1.27727e+00 2582 2007 9 2.86159e+01 1.49611e+00 2188 2007 10 2.62146e+01 8.94054e-01 1864 2007 11 1.95796e+01 1.63628e+00 3038 2007 12 1.76183e+01 1.34881e+00 1531 2008 1 1.38916e+01 1.87546e+00 764 2008 2 1.63820e+01 1.07415e+00 1403 2008 3 1.78879e+01 1.66519e+00 2209 2008 4 2.18352e+01 1.10491e+00 2837 2008 5 2.49876e+01 1.66637e+00 2980 2008 6 2.88207e+01 1.25663e+00 2621 2008 7 2.94299e+01 1.55340e+00 1778 2008 8 2.79988e+01 2.12208e+00 1440 2008 9 2.77372e+01 1.68319e+00 2487 2008 10 2.38927e+01 1.91123e+00 3332 2008 11 1.78758e+01 1.87247e+00 2143 2008 12 1.53649e+01 1.07471e+00 1153 2009 1 1.47481e+01 1.75327e+00 1823 2009 2 1.39924e+01 1.23545e+00 1591 2009 3 1.79251e+01 2.25784e+00 1861 2009 4 2.17998e+01 1.39260e+00 2429 2009 5 2.61463e+01 1.28109e+00 2376 2009 6 2.84420e+01 1.13646e+00 2678 2009 7 2.89125e+01 1.60448e+00 2471 2009 8 2.97985e+01 1.67955e+00 1980 2009 9 2.86191e+01 8.35021e-01 2212 2009 10 2.58078e+01 2.58215e+00 2572 2009 11 1.97595e+01 1.18521e+00 1844 2009 12 1.44412e+01 1.60609e+00 454 2010 1 1.14802e+01 2.49757e+00 1427 2010 2 1.22336e+01 1.12639e+00 1736 2010 3 1.53491e+01 2.00803e+00 1932 2010 4 2.13817e+01 1.33068e+00 2424 2010 5 2.65467e+01 2.21475e+00 3182 2010 6 3.04068e+01 1.09447e+00 2751 2010 7 2.97553e+01 1.51660e+00 2616 2010 8 3.02311e+01 1.21207e+00 1455 2010 9 2.89530e+01 1.51333e+00 2736 2010 10 2.46911e+01 9.32275e-01 4144 2010 11 2.01987e+01 1.25198e+00 2975 2010 12 1.42743e+01 3.16030e+00 2048 2011 1 1.15612e+01 7.98952e-01 1461 2011 2 1.39647e+01 1.82779e+00 764 2011 3 1.89199e+01 1.29079e+00 2106 2011 4 2.34869e+01 1.52347e+00 3705 2011 5 2.57699e+01 1.33469e+00 4211 2011 6 2.94479e+01 1.20290e+00 2571 2011 7 2.96561e+01 1.02155e+00 2043 2011 8 3.06136e+01 1.26003e+00 3112 2011 9 2.83919e+01 1.10627e+00 2613 2011 10 2.39621e+01 1.84349e+00 2823 2011 11 1.90046e+01 9.69833e-01 2286 2011 12 1.67084e+01 7.59479e-01 1320 2012 1 1.52400e+01 1.43159e+00 1979 2012 2 1.61116e+01 9.51914e-01 677 2012 3 2.13603e+01 2.05932e+00 2725 2012 4 2.33848e+01 9.82921e-01 3472 2012 5 2.67149e+01 1.09830e+00 3255 2012 6 2.73849e+01 1.00373e+00 2289 2012 7 2.94496e+01 1.72017e+00 2071 2012 8 2.88177e+01 1.37533e+00 1777 2012 9 2.83610e+01 1.34969e+00 1757 2012 10 2.50157e+01 2.34194e+00 2758 2012 11 1.87407e+01 1.04399e+00 2416 2012 12 1.67870e+01 1.96298e+00 1597 2013 1 1.53261e+01 1.30048e+00 1118 2013 2 1.59133e+01 1.77810e+00 1699 2013 3 1.59451e+01 1.28238e+00 2658 2013 4 2.11203e+01 2.02304e+00 2300 2013 5 2.45807e+01 1.93731e+00 2627 2013 6 2.79983e+01 1.58959e+00 2735 2013 7 2.81683e+01 1.76446e+00 1380 2013 8 3.01927e+01 1.41957e+00 2333 2013 9 2.93603e+01 1.64697e+00 3030 2013 10 2.54525e+01 1.66804e+00 2796 2013 11 1.99462e+01 2.16774e+00 1746 2013 12 1.68791e+01 1.31242e+00 1021 2014 1 1.26967e+01 8.70438e-01 806 2014 2 1.48008e+01 2.02773e+00 1164 2014 3 1.72570e+01 1.36903e+00 1834 2014 4 2.11111e+01 1.81433e+00 1952 2014 5 2.53072e+01 1.36724e+00 2554 2014 6 2.88754e+01 1.61058e+00 1947 2014 7 3.00906e+01 1.38836e+00 2118 2014 8 3.00700e+01 9.36727e-01 2671 2014 9 2.85565e+01 1.43685e+00 1370 2014 10 2.54047e+01 1.61136e+00 3436 2014 11 1.81859e+01 2.31144e+00 2435 2014 12 1.59856e+01 1.00611e+00 1495 2015 1 1.45842e+01 1.22298e+00 1890 2015 2 1.33956e+01 1.36592e+00 1545 2015 3 1.92018e+01 2.10645e+00 1478 2015 4 2.27811e+01 1.79051e+00 1171 2015 5 2.67832e+01 1.70871e+00 3848 2015 6 2.99030e+01 1.13152e+00 2249 2015 7 2.97465e+01 1.37229e+00 1579 2015 8 3.00453e+01 1.81567e+00 2103 2015 9 2.80013e+01 1.70100e+00 1377 2015 10 2.41318e+01 1.24715e+00 2359 2015 11 2.24473e+01 2.70104e+00 1978 2015 12 1.88269e+01 1.03911e+00 1256 2016 1 1.53312e+01 1.94990e+00 1380 2016 2 1.44264e+01 1.44959e+00 1322 2016 3 1.84313e+01 1.97726e+00 1491 2016 4 2.20331e+01 2.06304e+00 2184 2016 5 2.60019e+01 1.41502e+00 2901 2016 6 2.94929e+01 1.06799e+00 3020 2016 7 3.13525e+01 9.99244e-01 2858 2016 8 3.03576e+01 1.29165e+00 2287 2016 9 2.91823e+01 1.27111e+00 2638 2016 10 2.56521e+01 1.75769e+00 2787 2016 11 2.08658e+01 2.33601e+00 2775 2016 12 1.78931e+01 1.71718e+00 1589 2017 1 1.63346e+01 1.25038e+00 1391 2017 2 1.79037e+01 1.57692e+00 2050 2017 3 1.89163e+01 1.93058e+00 2451 2017 4 2.31224e+01 1.34480e+00 2996 2017 5 2.52829e+01 1.44572e+00 2235 2017 6 2.83546e+01 1.68561e+00 1790 2017 7 3.06600e+01 1.19540e+00 1281 2017 8 3.01386e+01 1.43787e+00 2024 2017 9 2.80602e+01 1.39569e+00 2565 2017 10 2.55443e+01 2.21385e+00 3212 2017 11 2.04846e+01 1.25737e+00 2859 2017 12 1.72742e+01 2.08275e+00 1323 2018 1 1.15003e+01 9.02431e-01 1464 2018 2 1.96385e+01 2.35554e+00 1046 2018 3 1.82626e+01 1.59241e+00 2536 2018 4 2.10365e+01 1.59933e+00 2630 2018 5 2.49276e+01 1.53745e+00 2218 2018 6 2.97401e+01 1.47303e+00 1876 2018 7 3.00504e+01 1.06801e+00 1853 2018 8 3.00360e+01 1.39713e+00 1919 2018 9 3.04138e+01 1.08159e+00 3205 2018 10 2.70921e+01 2.30622e+00 2693 2018 11 2.00697e+01 2.10351e+00 1116 2018 12 1.61792e+01 1.93052e+00 1183 2019 1 1.56032e+01 1.57610e+00 1653 2019 2 1.71917e+01 2.75813e+00 1208 2019 3 1.85912e+01 1.28876e+00 2031 2019 4 2.21649e+01 1.53916e+00 2300 2019 5 2.75171e+01 1.87278e+00 3401 2019 6 2.91960e+01 1.36919e+00 1765 2019 7 3.00258e+01 1.56003e+00 1745 2019 8 3.00925e+01 1.14109e+00 2131 2019 9 2.91844e+01 9.09665e-01 3817 2019 10 2.66081e+01 2.05448e+00 2426 2019 11 1.91011e+01 2.30135e+00 2190 2019 12 1.68430e+01 1.12094e+00 1763 2020 1 1.61364e+01 1.26800e+00 2291 2020 2 1.56302e+01 1.23088e+00 1769 2020 3 2.10380e+01 3.38794e+00 2527 2020 4 2.38529e+01 1.22416e+00 1946 2020 5 2.47219e+01 1.41166e+00 2914 2020 6 2.92796e+01 1.20857e+00 2321 2020 7 2.99701e+01 1.15056e+00 2107 2020 8 3.10822e+01 1.09226e+00 1460 2020 9 2.83969e+01 2.21926e+00 1614 2020 10 2.55448e+01 8.59965e-01 2450 2020 11 2.19256e+01 1.74782e+00 2888 2020 12 1.55337e+01 1.64910e+00 2596 2021 1 1.40980e+01 1.28761e+00 1843 2021 2 1.62488e+01 1.81004e+00 1785 2021 3 1.85957e+01 1.52657e+00 2155 2021 4 2.16430e+01 1.28197e+00 2498 2021 5 2.56257e+01 1.39268e+00 2534 2021 6 2.77757e+01 1.21595e+00 1325 2021 7 2.94053e+01 1.46879e+00 1538 2021 8 3.04374e+01 1.35308e+00 1842 2021 9 2.88726e+01 1.19262e+00 2002 2021 10 2.61096e+01 1.62008e+00 2342 2021 11 1.93640e+01 1.35823e+00 2716 2021 12 1.80457e+01 9.88852e-01 2504 2022 1 1.61783e+01 2.14142e+00 2650 2022 2 1.52691e+01 2.00176e+00 2155 2022 3 1.92243e+01 1.09400e+00 2693 2022 4 2.28114e+01 1.23918e+00 2084 2022 5 2.66698e+01 1.41797e+00 2789 2022 6 2.97403e+01 1.10249e+00 2619 2022 7 3.05675e+01 9.98554e-01 2071 2022 8 3.06520e+01 1.45253e+00 2117 2022 9 2.84205e+01 1.43817e+00 1760 2022 10 2.36493e+01 1.33902e+00 3221 2022 11 2.15522e+01 2.15640e+00 1618 2022 12 1.72926e+01 2.74638e+00 3240 2023 1 1.46313e+01 7.66863e-01 2453 2023 2 1.68477e+01 1.51695e+00 2308 2023 3 2.03957e+01 1.63601e+00 2752 2023 4 2.28180e+01 9.32108e-01 2032 2023 5 2.57243e+01 1.58751e+00 2500 2023 6 2.72382e+01 1.62404e+00 2319 2023 7 3.04359e+01 1.20462e+00 2906 2023 8 3.12279e+01 9.18982e-01 2723 2023 9 2.93522e+01 1.23309e+00 2359 2023 10 2.39556e+01 1.39236e+00 2925 2023 11 2.05937e+01 1.62041e+00 2109 2023 12 1.47467e+01 1.44999e+00 1460 2024 1 1.36706e+01 9.57000e-01 1408 2024 2 1.50542e+01 8.93633e-01 2118 2024 3 1.98836e+01 1.39611e+00 1798 2024 4 2.10582e+01 1.32143e+00 187