YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.67062e+01 1.36689e-01 128 2000 3 1.97320e+01 1.40812e+00 692 2000 4 2.20413e+01 7.91852e-01 576 2000 5 2.56264e+01 1.94111e+00 896 2000 6 2.76136e+01 1.05346e+00 314 2000 7 2.92359e+01 7.64654e-01 342 2000 8 2.94047e+01 8.34582e-01 322 2000 9 2.71710e+01 1.55540e+00 292 2000 10 2.34423e+01 1.31401e+00 1024 2000 11 2.16550e+01 2.21227e+00 561 2000 12 1.51014e+01 1.65277e+00 404 2001 1 1.26093e+01 9.69409e-02 128 2001 2 1.63283e+01 1.60027e+00 308 2001 3 1.70341e+01 1.44049e+00 495 2001 4 2.03104e+01 1.88991e+00 757 2001 5 2.49746e+01 1.29405e+00 470 2001 6 2.78065e+01 6.78864e-01 317 2001 7 2.92851e+01 9.02450e-01 253 2001 8 2.92909e+01 4.84044e-01 389 2001 9 2.77739e+01 1.33002e+00 359 2001 10 2.29496e+01 1.69876e+00 583 2001 11 2.01321e+01 4.59699e-01 704 2001 12 1.90264e+01 2.13979e+00 626 2002 1 1.35645e+01 5.01981e-01 172 2002 2 1.51227e+01 1.21973e+00 308 2002 3 2.03617e+01 5.93628e-01 67 2002 4 2.42331e+01 1.71343e+00 467 2002 5 2.62136e+01 1.14384e+00 686 2002 6 2.80890e+01 8.10587e-01 574 2002 7 2.89384e+01 1.48343e+00 1797 2002 8 2.91307e+01 1.04031e+00 2036 2002 9 2.83109e+01 1.31307e+00 2080 2002 10 2.71065e+01 1.88162e+00 2822 2002 11 2.12138e+01 2.83619e+00 2157 2002 12 1.55202e+01 1.15865e+00 1247 2003 1 1.28887e+01 1.06484e+00 1857 2003 2 1.41979e+01 1.47325e+00 840 2003 3 2.03352e+01 9.84909e-01 1467 2003 4 2.15645e+01 1.80703e+00 2662 2003 5 2.66607e+01 1.43026e+00 2783 2003 6 2.82787e+01 1.30498e+00 1781 2003 7 2.95763e+01 1.27375e+00 1123 2003 8 2.88655e+01 1.38122e+00 2121 2003 9 2.85928e+01 9.80176e-01 1818 2003 10 2.44076e+01 9.43491e-01 2752 2003 11 2.20604e+01 1.62285e+00 2970 2003 12 1.56424e+01 1.87032e+00 1567 2004 1 1.36669e+01 8.15177e-01 1676 2004 2 1.39074e+01 8.73771e-01 680 2004 3 1.81011e+01 1.64179e+00 2639 2004 4 2.00618e+01 1.68274e+00 2367 2004 5 2.56811e+01 1.86906e+00 3513 2004 6 2.94397e+01 1.21147e+00 2324 2004 7 2.99276e+01 1.42393e+00 1689 2004 8 2.94396e+01 1.49627e+00 2039 2004 9 2.73364e+01 1.69156e+00 1825 2004 10 2.50538e+01 1.37252e+00 2537 2004 11 2.25110e+01 2.30062e+00 2132 2004 12 1.61679e+01 2.41810e+00 2067 2005 1 1.48474e+01 1.65857e+00 1163 2005 2 1.41897e+01 7.65515e-01 1173 2005 3 1.61332e+01 1.35757e+00 1638 2005 4 2.03265e+01 7.56471e-01 2653 2005 5 2.46232e+01 2.13711e+00 3239 2005 6 2.86268e+01 1.28898e+00 2241 2005 7 3.00063e+01 1.68408e+00 2515 2005 8 2.99030e+01 1.84074e+00 2067 2005 9 2.82304e+01 9.35802e-01 2941 2005 10 2.55331e+01 2.31481e+00 3319 2005 11 2.05035e+01 1.60084e+00 2093 2005 12 1.54679e+01 1.93496e+00 1534 2006 1 1.48732e+01 9.49187e-01 1530 2006 2 1.45427e+01 1.20748e+00 1633 2006 3 1.82028e+01 1.03789e+00 2410 2006 4 2.22840e+01 2.02587e+00 2740 2006 5 2.50188e+01 1.31136e+00 3268 2006 6 2.81868e+01 1.28496e+00 2916 2006 7 3.00022e+01 1.31149e+00 2434 2006 8 3.04125e+01 9.82399e-01 2525 2006 9 2.87452e+01 1.42179e+00 2786 2006 10 2.50358e+01 1.99191e+00 3076 2006 11 1.91671e+01 1.84454e+00 1909 2006 12 1.58252e+01 1.32010e+00 947 2007 1 1.54018e+01 1.06528e+00 956 2007 2 1.39141e+01 7.77918e-01 1241 2007 3 1.81893e+01 1.56471e+00 2844 2007 4 2.05246e+01 1.56805e+00 1859 2007 5 2.39970e+01 9.76832e-01 3824 2007 6 2.74653e+01 1.65763e+00 2762 2007 7 2.98472e+01 1.56116e+00 1844 2007 8 3.06506e+01 1.32274e+00 2605 2007 9 2.86968e+01 1.38608e+00 2410 2007 10 2.64037e+01 8.25512e-01 1931 2007 11 2.00175e+01 1.73585e+00 3236 2007 12 1.78030e+01 1.29142e+00 1625 2008 1 1.43500e+01 1.56039e+00 957 2008 2 1.62673e+01 1.06645e+00 1562 2008 3 1.77595e+01 1.51241e+00 2126 2008 4 2.17268e+01 9.59676e-01 2913 2008 5 2.49163e+01 1.76004e+00 2958 2008 6 2.86211e+01 1.28440e+00 2229 2008 7 2.95715e+01 1.56225e+00 1811 2008 8 2.84839e+01 1.21319e+00 1675 2008 9 2.78582e+01 1.36400e+00 2349 2008 10 2.41740e+01 1.74613e+00 3349 2008 11 1.84237e+01 1.68428e+00 2324 2008 12 1.57843e+01 7.74370e-01 1296 2009 1 1.50089e+01 1.61139e+00 1961 2009 2 1.41627e+01 1.11480e+00 1762 2009 3 1.76616e+01 1.98981e+00 2140 2009 4 2.15928e+01 1.65346e+00 2701 2009 5 2.58146e+01 1.32346e+00 2608 2009 6 2.81121e+01 1.19454e+00 2778 2009 7 2.88801e+01 1.23461e+00 2507 2009 8 2.98166e+01 1.49401e+00 2134 2009 9 2.87243e+01 7.88029e-01 2174 2009 10 2.60204e+01 2.35593e+00 2827 2009 11 2.01817e+01 1.37672e+00 1850 2009 12 1.46430e+01 2.05150e+00 523 2010 1 1.18625e+01 1.88286e+00 1503 2010 2 1.25448e+01 9.56841e-01 1752 2010 3 1.46801e+01 2.17822e+00 2029 2010 4 2.13959e+01 1.21251e+00 2239 2010 5 2.64846e+01 2.21462e+00 3168 2010 6 3.02426e+01 1.22414e+00 2398 2010 7 2.97569e+01 1.37468e+00 2530 2010 8 3.01576e+01 1.31855e+00 1394 2010 9 2.90279e+01 1.31318e+00 2810 2010 10 2.49897e+01 1.02579e+00 4092 2010 11 2.05631e+01 1.28726e+00 3059 2010 12 1.49212e+01 2.99718e+00 2148 2011 1 1.17781e+01 7.28619e-01 1537 2011 2 1.29562e+01 1.30167e+00 587 2011 3 1.86123e+01 1.21438e+00 2090 2011 4 2.33325e+01 1.42851e+00 3584 2011 5 2.57896e+01 1.24214e+00 4265 2011 6 2.92685e+01 1.24521e+00 2551 2011 7 2.97648e+01 1.29529e+00 2046 2011 8 3.07406e+01 1.12645e+00 2993 2011 9 2.85165e+01 1.10817e+00 2611 2011 10 2.43436e+01 1.91281e+00 2704 2011 11 1.93852e+01 1.00362e+00 2162 2011 12 1.70395e+01 9.61777e-01 1309 2012 1 1.55131e+01 1.02985e+00 2042 2012 2 1.60891e+01 1.59494e+00 737 2012 3 2.07414e+01 2.09297e+00 2524 2012 4 2.33043e+01 9.47036e-01 3394 2012 5 2.64816e+01 1.18883e+00 3430 2012 6 2.73467e+01 1.20616e+00 2562 2012 7 2.91635e+01 1.51215e+00 2108 2012 8 2.87567e+01 1.45587e+00 1802 2012 9 2.82044e+01 1.43920e+00 2150 2012 10 2.49241e+01 2.16640e+00 2867 2012 11 1.92620e+01 1.10494e+00 2487 2012 12 1.70591e+01 1.71349e+00 1620 2013 1 1.54342e+01 8.82657e-01 1336 2013 2 1.62469e+01 1.22575e+00 1719 2013 3 1.60058e+01 1.17743e+00 2553 2013 4 2.09269e+01 1.85578e+00 2185 2013 5 2.43889e+01 1.85530e+00 2410 2013 6 2.79236e+01 1.59589e+00 2442 2013 7 2.86117e+01 1.71030e+00 961 2013 8 3.02506e+01 1.37541e+00 2546 2013 9 2.95636e+01 1.62299e+00 2884 2013 10 2.55397e+01 1.56475e+00 2720 2013 11 2.05049e+01 2.13016e+00 1694 2013 12 1.68978e+01 1.36014e+00 1348 2014 1 1.30954e+01 6.41482e-01 935 2014 2 1.50494e+01 1.99488e+00 887 2014 3 1.70872e+01 1.22781e+00 1761 2014 4 2.09540e+01 1.75549e+00 2050 2014 5 2.52567e+01 1.57016e+00 2690 2014 6 2.87998e+01 1.53211e+00 2268 2014 7 2.97739e+01 1.43663e+00 2294 2014 8 2.99940e+01 9.78786e-01 2790 2014 9 2.87158e+01 1.37742e+00 1479 2014 10 2.57306e+01 1.60806e+00 3336 2014 11 1.83981e+01 2.21973e+00 2351 2014 12 1.61216e+01 1.14572e+00 1704 2015 1 1.47793e+01 1.02923e+00 1854 2015 2 1.36895e+01 1.13507e+00 1637 2015 3 1.90918e+01 1.98675e+00 1687 2015 4 2.30485e+01 1.81964e+00 1202 2015 5 2.65474e+01 1.59987e+00 3866 2015 6 2.98951e+01 1.07634e+00 2341 2015 7 2.95118e+01 1.39493e+00 1620 2015 8 3.00430e+01 1.90967e+00 2061 2015 9 2.84365e+01 1.57472e+00 1254 2015 10 2.44051e+01 1.27691e+00 2647 2015 11 2.23149e+01 2.56622e+00 2111 2015 12 1.89430e+01 8.98223e-01 1242 2016 1 1.56486e+01 2.01012e+00 1463 2016 2 1.43757e+01 1.30519e+00 1454 2016 3 1.85358e+01 1.77809e+00 1516 2016 4 2.19278e+01 1.82358e+00 2388 2016 5 2.58402e+01 1.35218e+00 3347 2016 6 2.94048e+01 1.10671e+00 2783 2016 7 3.12596e+01 1.06635e+00 2988 2016 8 3.03011e+01 1.07085e+00 2454 2016 9 2.93343e+01 1.10368e+00 2641 2016 10 2.57892e+01 1.76495e+00 2844 2016 11 2.13200e+01 2.36196e+00 2783 2016 12 1.79856e+01 1.57430e+00 1690 2017 1 1.62808e+01 1.10228e+00 1333 2017 2 1.77705e+01 1.54506e+00 2037 2017 3 1.87774e+01 1.79389e+00 2509 2017 4 2.29528e+01 1.23892e+00 2704 2017 5 2.52462e+01 1.25722e+00 2349 2017 6 2.83217e+01 1.54427e+00 2042 2017 7 3.04831e+01 1.43994e+00 1548 2017 8 3.02252e+01 1.43217e+00 2086 2017 9 2.81773e+01 1.33035e+00 2598 2017 10 2.56090e+01 1.89867e+00 3468 2017 11 2.09340e+01 1.19409e+00 2853 2017 12 1.73559e+01 2.05644e+00 1397 2018 1 1.21529e+01 8.82283e-01 1480 2018 2 1.77594e+01 3.18961e+00 962 2018 3 1.84122e+01 1.37467e+00 2768 2018 4 2.12216e+01 1.23124e+00 2376 2018 5 2.46429e+01 1.45323e+00 2184 2018 6 2.91079e+01 1.53383e+00 1819 2018 7 2.99066e+01 1.05206e+00 2140 2018 8 2.99759e+01 1.41813e+00 1783 2018 9 3.03252e+01 1.05021e+00 3328 2018 10 2.72975e+01 2.08988e+00 2829 2018 11 2.07103e+01 1.79005e+00 1150 2018 12 1.63891e+01 1.59211e+00 1092 2019 1 1.58159e+01 1.39344e+00 1634 2019 2 1.66852e+01 2.75100e+00 831 2019 3 1.84770e+01 1.40001e+00 2125 2019 4 2.18151e+01 1.90901e+00 2344 2019 5 2.71836e+01 1.96503e+00 3589 2019 6 2.91424e+01 1.35231e+00 1749 2019 7 3.00191e+01 1.37312e+00 1721 2019 8 3.02559e+01 1.01562e+00 2041 2019 9 2.92781e+01 9.24587e-01 4073 2019 10 2.67553e+01 2.00072e+00 2340 2019 11 1.93627e+01 2.31655e+00 2220 2019 12 1.69516e+01 1.29814e+00 2005 2020 1 1.61903e+01 1.08274e+00 2094 2020 2 1.55535e+01 9.64551e-01 1819 2020 3 2.08351e+01 3.16703e+00 2701 2020 4 2.37369e+01 9.55375e-01 2091 2020 5 2.47376e+01 1.34221e+00 2927 2020 6 2.91317e+01 1.22526e+00 2546 2020 7 2.99581e+01 1.19376e+00 2165 2020 8 3.10744e+01 1.07975e+00 1459 2020 9 2.86715e+01 1.90583e+00 1709 2020 10 2.55785e+01 9.96501e-01 2594 2020 11 2.21823e+01 1.78278e+00 2824 2020 12 1.61315e+01 1.92528e+00 2787 2021 1 1.43861e+01 1.14185e+00 1775 2021 2 1.60933e+01 1.64060e+00 1860 2021 3 1.84346e+01 1.35253e+00 2583 2021 4 2.16552e+01 1.21818e+00 2560 2021 5 2.54532e+01 1.49145e+00 2732 2021 6 2.77134e+01 1.23038e+00 1597 2021 7 2.93849e+01 1.13201e+00 1546 2021 8 3.02053e+01 1.14744e+00 1843 2021 9 2.86840e+01 1.27280e+00 1969 2021 10 2.64486e+01 1.46718e+00 2365 2021 11 1.97115e+01 1.26807e+00 2914 2021 12 1.80478e+01 9.84524e-01 2392 2022 1 1.65471e+01 2.10073e+00 2493 2022 2 1.52314e+01 1.84224e+00 2088 2022 3 1.91754e+01 9.61898e-01 2698 2022 4 2.26525e+01 1.19097e+00 2235 2022 5 2.64967e+01 1.35470e+00 2949 2022 6 2.97918e+01 1.05974e+00 2623 2022 7 3.05465e+01 1.04040e+00 2174 2022 8 3.08191e+01 1.24249e+00 2129 2022 9 2.84969e+01 1.47605e+00 1985 2022 10 2.39810e+01 1.33219e+00 3400 2022 11 2.14837e+01 2.13415e+00 1625 2022 12 1.74927e+01 2.31196e+00 2997 2023 1 1.47676e+01 7.57787e-01 2301 2023 2 1.68801e+01 1.39303e+00 2095 2023 3 2.03781e+01 1.57058e+00 2698 2023 4 2.26181e+01 8.98535e-01 2160 2023 5 2.55863e+01 1.58874e+00 2685 2023 6 2.72182e+01 1.48362e+00 2372 2023 7 3.00993e+01 1.14446e+00 2807 2023 8 3.12756e+01 1.02021e+00 2811 2023 9 2.94800e+01 1.30048e+00 2555 2023 10 2.42193e+01 1.38860e+00 3163 2023 11 2.09179e+01 1.28757e+00 2218 2023 12 1.51078e+01 1.49868e+00 1481 2024 1 1.36575e+01 1.07131e+00 1370 2024 2 1.51561e+01 7.95030e-01 1797 2024 3 1.94258e+01 1.32036e+00 1669 2024 4 2.14652e+01 2.64098e-01 192