YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.76846e+01 2.09973e-01 128 2000 3 2.00706e+01 1.69187e+00 636 2000 4 2.22120e+01 7.92681e-01 718 2000 5 2.52655e+01 1.78722e+00 851 2000 6 2.75770e+01 6.53954e-01 452 2000 7 2.87724e+01 8.90457e-01 504 2000 8 2.93196e+01 4.77992e-01 233 2000 9 2.72797e+01 1.06048e+00 388 2000 10 2.30298e+01 1.57464e+00 970 2000 11 2.17966e+01 2.49748e+00 497 2000 12 1.53187e+01 1.23360e+00 166 2001 1 1.24134e+01 5.96543e-02 64 2001 2 1.79991e+01 1.43031e+00 332 2001 3 1.68945e+01 1.33482e+00 452 2001 4 2.09199e+01 1.80309e+00 745 2001 5 2.53585e+01 9.64533e-01 770 2001 6 2.85198e+01 8.08761e-01 240 2001 7 2.81304e+01 1.16280e+00 256 2001 8 2.87176e+01 1.68946e+00 571 2001 9 2.69533e+01 1.45586e+00 479 2001 10 2.24841e+01 1.84236e+00 569 2001 11 1.97457e+01 8.17555e-01 776 2001 12 1.97135e+01 2.16647e+00 602 2002 1 1.30203e+01 1.96082e-01 171 2002 2 1.59421e+01 1.35484e+00 384 2002 3 2.06937e+01 7.48815e-02 64 2002 4 2.36574e+01 2.10163e+00 486 2002 5 2.62978e+01 1.55571e+00 816 2002 6 2.82321e+01 9.91204e-01 549 2002 7 2.94082e+01 1.04950e+00 1703 2002 8 2.91625e+01 8.23798e-01 2088 2002 9 2.87902e+01 9.38066e-01 2049 2002 10 2.70042e+01 1.86133e+00 3138 2002 11 2.05846e+01 2.87603e+00 2190 2002 12 1.47866e+01 1.03047e+00 1245 2003 1 1.21141e+01 1.42685e+00 1665 2003 2 1.46917e+01 1.97583e+00 704 2003 3 2.10305e+01 1.47128e+00 1301 2003 4 2.17525e+01 1.79222e+00 2380 2003 5 2.67921e+01 1.57099e+00 2879 2003 6 2.83605e+01 1.44865e+00 1628 2003 7 2.93224e+01 1.50148e+00 1293 2003 8 2.85387e+01 1.31904e+00 2398 2003 9 2.82458e+01 1.27279e+00 1927 2003 10 2.44940e+01 1.05200e+00 2557 2003 11 2.19057e+01 1.85803e+00 2865 2003 12 1.53626e+01 1.70245e+00 1244 2004 1 1.38260e+01 9.50335e-01 1671 2004 2 1.37222e+01 1.14324e+00 719 2004 3 1.85010e+01 1.74488e+00 2549 2004 4 2.00769e+01 1.79848e+00 2412 2004 5 2.60554e+01 1.78070e+00 3570 2004 6 2.94703e+01 1.40886e+00 2314 2004 7 2.99151e+01 1.16773e+00 2325 2004 8 2.95870e+01 1.53881e+00 2276 2004 9 2.72691e+01 1.80028e+00 2175 2004 10 2.51282e+01 1.59775e+00 2719 2004 11 2.21805e+01 2.47948e+00 1973 2004 12 1.62130e+01 2.36835e+00 1691 2005 1 1.47931e+01 2.05382e+00 1149 2005 2 1.45248e+01 9.30164e-01 1077 2005 3 1.66830e+01 1.70290e+00 1689 2005 4 2.03064e+01 1.09333e+00 3010 2005 5 2.46297e+01 2.20295e+00 2970 2005 6 2.84669e+01 1.41819e+00 2128 2005 7 3.02705e+01 1.62724e+00 2183 2005 8 2.99868e+01 1.86604e+00 1964 2005 9 2.78974e+01 1.42574e+00 2599 2005 10 2.51532e+01 2.72718e+00 2872 2005 11 2.01740e+01 1.59147e+00 2051 2005 12 1.49068e+01 2.00250e+00 1645 2006 1 1.49505e+01 9.88931e-01 1482 2006 2 1.45997e+01 1.35952e+00 1468 2006 3 1.85077e+01 1.18641e+00 2787 2006 4 2.24688e+01 2.35658e+00 2691 2006 5 2.52304e+01 1.55271e+00 3351 2006 6 2.82153e+01 1.14392e+00 3171 2006 7 2.99334e+01 1.49917e+00 2460 2006 8 3.02190e+01 1.13259e+00 2543 2006 9 2.86681e+01 1.55870e+00 2815 2006 10 2.46397e+01 2.05847e+00 2817 2006 11 1.83888e+01 1.89168e+00 1887 2006 12 1.61005e+01 1.37762e+00 591 2007 1 1.48469e+01 1.30767e+00 922 2007 2 1.38626e+01 1.02360e+00 1277 2007 3 1.89269e+01 1.47999e+00 2877 2007 4 2.08011e+01 1.62537e+00 2303 2007 5 2.43102e+01 9.28879e-01 3574 2007 6 2.78116e+01 1.59621e+00 2671 2007 7 2.99839e+01 1.26449e+00 1855 2007 8 3.04008e+01 1.38806e+00 2524 2007 9 2.87059e+01 1.51648e+00 2392 2007 10 2.62866e+01 1.09955e+00 1815 2007 11 1.97155e+01 1.57964e+00 2981 2007 12 1.80459e+01 1.35473e+00 1595 2008 1 1.41585e+01 1.80770e+00 784 2008 2 1.65046e+01 1.37538e+00 1477 2008 3 1.79940e+01 1.80475e+00 2550 2008 4 2.19080e+01 1.35955e+00 2684 2008 5 2.51449e+01 1.57181e+00 2778 2008 6 2.88928e+01 1.32777e+00 2463 2008 7 2.96464e+01 1.60269e+00 1782 2008 8 2.83679e+01 1.69164e+00 1517 2008 9 2.78739e+01 1.58722e+00 2739 2008 10 2.38623e+01 2.05729e+00 3212 2008 11 1.77275e+01 1.90466e+00 2423 2008 12 1.55318e+01 1.26977e+00 1169 2009 1 1.46970e+01 1.96392e+00 1843 2009 2 1.40456e+01 1.20595e+00 1847 2009 3 1.77938e+01 2.55647e+00 2180 2009 4 2.20982e+01 1.53325e+00 2420 2009 5 2.59534e+01 1.50212e+00 2474 2009 6 2.84547e+01 1.08732e+00 2420 2009 7 2.90687e+01 1.16380e+00 2066 2009 8 2.97933e+01 1.51599e+00 2179 2009 9 2.87507e+01 9.09619e-01 2150 2009 10 2.59093e+01 2.60722e+00 3149 2009 11 1.99371e+01 1.36263e+00 1811 2009 12 1.43705e+01 2.14441e+00 659 2010 1 1.13142e+01 2.38555e+00 1340 2010 2 1.24118e+01 8.86817e-01 1593 2010 3 1.52425e+01 1.90528e+00 1870 2010 4 2.12013e+01 1.47571e+00 2086 2010 5 2.65824e+01 2.08440e+00 3225 2010 6 3.02116e+01 1.42505e+00 2508 2010 7 2.99679e+01 1.53188e+00 2160 2010 8 3.03159e+01 1.36730e+00 1332 2010 9 2.92448e+01 1.39579e+00 2718 2010 10 2.47326e+01 1.00056e+00 4115 2010 11 2.02641e+01 1.39547e+00 2676 2010 12 1.41221e+01 2.91975e+00 2040 2011 1 1.16837e+01 8.81044e-01 1499 2011 2 1.43897e+01 2.03292e+00 896 2011 3 1.91172e+01 1.33874e+00 2309 2011 4 2.36428e+01 1.55444e+00 3723 2011 5 2.60071e+01 1.35299e+00 4207 2011 6 2.94010e+01 1.40131e+00 2613 2011 7 2.96883e+01 1.16462e+00 1905 2011 8 3.06023e+01 1.19393e+00 2867 2011 9 2.84789e+01 1.10653e+00 2515 2011 10 2.42442e+01 1.80236e+00 2657 2011 11 1.91780e+01 8.64382e-01 2288 2011 12 1.64759e+01 8.49486e-01 1321 2012 1 1.53381e+01 1.24780e+00 2041 2012 2 1.67493e+01 1.57569e+00 645 2012 3 2.14785e+01 2.06507e+00 2776 2012 4 2.35165e+01 1.07048e+00 3399 2012 5 2.67252e+01 1.08763e+00 3193 2012 6 2.74936e+01 1.37828e+00 2061 2012 7 2.96951e+01 1.73594e+00 2215 2012 8 2.92320e+01 1.26480e+00 1811 2012 9 2.81693e+01 1.37942e+00 2077 2012 10 2.46775e+01 2.50494e+00 2804 2012 11 1.86939e+01 1.18259e+00 2508 2012 12 1.71773e+01 1.86357e+00 1880 2013 1 1.56905e+01 1.40304e+00 1077 2013 2 1.62397e+01 1.37210e+00 1829 2013 3 1.62695e+01 1.23351e+00 2533 2013 4 2.11096e+01 2.16888e+00 2212 2013 5 2.44855e+01 2.21140e+00 2912 2013 6 2.84135e+01 1.53257e+00 2471 2013 7 2.86892e+01 1.62452e+00 1421 2013 8 3.01700e+01 1.50792e+00 2598 2013 9 2.96040e+01 1.60465e+00 2812 2013 10 2.55006e+01 1.64089e+00 2946 2013 11 1.97892e+01 2.22108e+00 1580 2013 12 1.64387e+01 1.52456e+00 1089 2014 1 1.27311e+01 1.12761e+00 932 2014 2 1.48863e+01 2.42303e+00 1162 2014 3 1.74241e+01 1.29945e+00 2048 2014 4 2.11570e+01 1.87316e+00 2064 2014 5 2.53097e+01 1.48689e+00 2441 2014 6 2.84771e+01 1.74176e+00 2299 2014 7 3.01891e+01 1.41759e+00 2425 2014 8 3.01804e+01 1.07529e+00 2664 2014 9 2.90002e+01 1.31087e+00 1031 2014 10 2.54666e+01 1.75555e+00 3227 2014 11 1.80068e+01 2.15763e+00 1915 2014 12 1.63629e+01 9.90896e-01 1387 2015 1 1.47936e+01 1.29106e+00 1872 2015 2 1.35875e+01 1.18167e+00 1570 2015 3 1.94723e+01 1.81378e+00 1535 2015 4 2.33531e+01 1.79630e+00 1291 2015 5 2.66964e+01 1.75877e+00 4009 2015 6 2.98154e+01 1.44973e+00 2280 2015 7 2.93495e+01 1.64981e+00 2102 2015 8 3.00350e+01 1.75066e+00 1877 2015 9 2.80176e+01 1.68587e+00 1289 2015 10 2.40881e+01 1.41129e+00 2475 2015 11 2.28009e+01 2.53874e+00 2214 2015 12 1.88296e+01 1.05369e+00 1117 2016 1 1.54565e+01 1.88004e+00 1350 2016 2 1.41151e+01 1.28711e+00 1309 2016 3 1.86468e+01 1.79995e+00 1281 2016 4 2.22429e+01 1.91653e+00 2133 2016 5 2.60897e+01 1.48134e+00 3125 2016 6 2.94565e+01 1.11245e+00 2706 2016 7 3.11518e+01 1.27538e+00 2810 2016 8 3.03591e+01 1.30916e+00 2318 2016 9 2.92835e+01 1.38159e+00 2562 2016 10 2.55816e+01 1.69218e+00 2922 2016 11 2.08894e+01 2.36321e+00 2630 2016 12 1.80093e+01 1.69283e+00 1743 2017 1 1.63697e+01 1.17404e+00 1306 2017 2 1.79235e+01 1.76103e+00 1902 2017 3 1.89942e+01 1.85827e+00 2624 2017 4 2.32239e+01 1.23252e+00 3008 2017 5 2.51348e+01 1.40544e+00 2268 2017 6 2.82966e+01 1.64304e+00 1553 2017 7 3.02247e+01 1.38426e+00 1615 2017 8 3.02382e+01 1.44436e+00 1896 2017 9 2.81553e+01 1.55416e+00 2581 2017 10 2.53565e+01 2.21163e+00 3018 2017 11 2.03204e+01 1.16458e+00 2938 2017 12 1.71584e+01 2.19932e+00 1274 2018 1 1.16823e+01 1.27972e+00 1347 2018 2 1.86562e+01 2.91896e+00 1446 2018 3 1.84513e+01 1.68371e+00 2879 2018 4 2.14158e+01 1.39665e+00 2291 2018 5 2.47052e+01 2.13504e+00 2165 2018 6 2.92305e+01 1.61706e+00 2234 2018 7 3.02113e+01 1.51964e+00 1811 2018 8 3.01069e+01 1.26912e+00 1978 2018 9 3.04348e+01 1.03311e+00 2896 2018 10 2.72110e+01 2.10229e+00 3339 2018 11 1.96580e+01 2.30899e+00 1363 2018 12 1.57838e+01 2.12140e+00 1154 2019 1 1.53312e+01 1.68025e+00 1592 2019 2 1.70624e+01 3.07138e+00 815 2019 3 1.89867e+01 1.18422e+00 1819 2019 4 2.23754e+01 1.57736e+00 1934 2019 5 2.74963e+01 1.85050e+00 3228 2019 6 2.91119e+01 1.63436e+00 1718 2019 7 2.98338e+01 1.34198e+00 1284 2019 8 2.98793e+01 1.18390e+00 1979 2019 9 2.92746e+01 9.58054e-01 3462 2019 10 2.66523e+01 1.78612e+00 2239 2019 11 1.94513e+01 2.36300e+00 2063 2019 12 1.68904e+01 1.23851e+00 1925 2020 1 1.63058e+01 1.45152e+00 2195 2020 2 1.58457e+01 1.14172e+00 1851 2020 3 2.09495e+01 3.45399e+00 2497 2020 4 2.39304e+01 9.17930e-01 1932 2020 5 2.49354e+01 1.42580e+00 2911 2020 6 2.93456e+01 1.29918e+00 2219 2020 7 2.99915e+01 1.36513e+00 1949 2020 8 3.11596e+01 1.24919e+00 1387 2020 9 2.83451e+01 1.89385e+00 1596 2020 10 2.57014e+01 9.97152e-01 2651 2020 11 2.20471e+01 1.75967e+00 2623 2020 12 1.56078e+01 1.67812e+00 2721 2021 1 1.42772e+01 1.25782e+00 1850 2021 2 1.62890e+01 2.09655e+00 1794 2021 3 1.88123e+01 1.62617e+00 2472 2021 4 2.19680e+01 1.46222e+00 2607 2021 5 2.57231e+01 1.26271e+00 2873 2021 6 2.80121e+01 1.18729e+00 1557 2021 7 2.96236e+01 1.05074e+00 1757 2021 8 3.02423e+01 1.26984e+00 1750 2021 9 2.86952e+01 1.10440e+00 2550 2021 10 2.63264e+01 1.66223e+00 2057 2021 11 1.94412e+01 1.46363e+00 2713 2021 12 1.80325e+01 1.16776e+00 2582 2022 1 1.63007e+01 2.21478e+00 2581 2022 2 1.59158e+01 2.46016e+00 2320 2022 3 1.93144e+01 1.13120e+00 2663 2022 4 2.30138e+01 1.03061e+00 2010 2022 5 2.67810e+01 1.35734e+00 2868 2022 6 2.96992e+01 9.59997e-01 2457 2022 7 3.07363e+01 1.14462e+00 2037 2022 8 3.09717e+01 1.33622e+00 1989 2022 9 2.83355e+01 1.71128e+00 2007 2022 10 2.36880e+01 1.48461e+00 2947 2022 11 2.15171e+01 2.20212e+00 1610 2022 12 1.77369e+01 2.63400e+00 2829 2023 1 1.49927e+01 8.30141e-01 2472 2023 2 1.72453e+01 1.43910e+00 1957 2023 3 2.05038e+01 1.71749e+00 3201 2023 4 2.30250e+01 1.12840e+00 2107 2023 5 2.54856e+01 1.70864e+00 2728 2023 6 2.74234e+01 1.35043e+00 2287 2023 7 3.04562e+01 1.26292e+00 3041 2023 8 3.12631e+01 1.03661e+00 2927 2023 9 2.95132e+01 1.29270e+00 2388 2023 10 2.40401e+01 1.34269e+00 2774 2023 11 2.07939e+01 1.42418e+00 2057 2023 12 1.48254e+01 1.44922e+00 1420 2024 1 1.38131e+01 1.01368e+00 1267 2024 2 1.56033e+01 8.58643e-01 2044 2024 3 2.00503e+01 1.24784e+00 1989 2024 4 2.17747e+01 7.33833e-01 242