YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.72112e+01 3.82205e-01 201 2000 3 1.72172e+01 1.00030e+00 1158 2000 4 2.12243e+01 2.54902e+00 84 2000 5 2.63660e+01 1.87049e+00 442 2000 6 2.85356e+01 7.83566e-01 440 2000 7 3.12534e+01 1.51353e+00 548 2000 8 3.27160e+01 1.16608e+00 907 2000 9 3.03243e+01 7.37376e-01 1909 2000 10 2.82820e+01 1.22504e+00 1692 2000 11 2.40518e+01 1.39143e+00 936 2000 12 2.07173e+01 1.07820e+00 1009 2001 1 1.75813e+01 6.72684e-01 1971 2001 2 1.61108e+01 1.10261e+00 1325 2001 3 1.86650e+01 7.69021e-01 1089 2001 4 2.20189e+01 1.08456e+00 751 2001 5 2.50376e+01 1.85249e+00 875 2001 6 2.79783e+01 7.95330e-01 381 2001 7 3.15387e+01 1.61243e+00 1809 2001 8 3.25124e+01 7.66237e-01 2186 2001 9 3.16694e+01 6.57076e-01 2389 2001 10 2.94925e+01 6.22618e-01 2182 2001 11 2.60154e+01 2.26401e+00 1904 2001 12 2.03000e+01 9.69730e-01 1272 2002 1 1.68536e+01 9.20327e-01 1759 2002 2 1.65330e+01 6.36998e-01 1323 2002 3 1.82701e+01 8.87709e-01 838 2002 4 2.12175e+01 1.81348e+00 792 2002 5 2.61859e+01 1.30229e+00 1419 2002 6 2.89760e+01 1.23212e+00 1462 2002 7 3.17258e+01 1.09070e+00 3907 2002 8 3.16380e+01 6.99928e-01 3874 2002 9 3.08275e+01 9.08540e-01 4910 2002 10 2.92406e+01 1.07763e+00 4422 2002 11 2.55333e+01 1.66705e+00 3892 2002 12 1.96688e+01 1.30697e+00 2552 2003 1 1.74486e+01 1.11224e+00 2809 2003 2 1.66473e+01 7.18432e-01 2083 2003 3 1.71546e+01 1.27085e+00 1904 2003 4 2.09301e+01 1.47054e+00 1585 2003 5 2.49711e+01 2.27165e+00 1887 2003 6 2.88461e+01 1.43030e+00 1922 2003 7 3.12803e+01 1.27763e+00 3865 2003 8 3.23197e+01 1.06422e+00 4273 2003 9 3.06022e+01 1.25516e+00 4790 2003 10 2.92168e+01 1.07259e+00 5121 2003 11 2.48208e+01 1.72391e+00 3102 2003 12 2.01566e+01 1.30749e+00 2399 2004 1 1.72371e+01 9.98586e-01 2474 2004 2 1.67509e+01 9.24693e-01 2667 2004 3 1.85979e+01 9.03712e-01 2501 2004 4 2.06271e+01 1.31294e+00 1743 2004 5 2.48884e+01 1.81674e+00 2304 2004 6 2.90814e+01 1.32023e+00 3186 2004 7 3.12148e+01 1.20047e+00 4191 2004 8 3.19098e+01 6.66320e-01 4886 2004 9 3.07298e+01 1.26868e+00 4511 2004 10 2.90730e+01 1.60135e+00 4664 2004 11 2.63257e+01 2.29118e+00 2308 2004 12 1.87746e+01 1.93709e+00 2537 2005 1 1.58419e+01 1.05442e+00 2856 2005 2 1.53580e+01 6.12906e-01 1746 2005 3 1.75163e+01 1.04713e+00 2548 2005 4 2.11379e+01 1.72579e+00 1664 2005 5 2.54241e+01 2.16303e+00 2196 2005 6 2.88080e+01 1.31731e+00 2886 2005 7 3.02543e+01 1.46691e+00 2335 2005 8 3.14942e+01 1.01253e+00 3923 2005 9 3.07771e+01 1.09294e+00 4970 2005 10 2.79341e+01 1.49109e+00 4903 2005 11 2.37255e+01 1.61006e+00 2704 2005 12 2.17174e+01 1.28898e+00 3200 2006 1 1.71729e+01 1.08389e+00 2126 2006 2 1.60262e+01 1.00908e+00 1474 2006 3 1.78945e+01 1.02581e+00 2731 2006 4 2.12999e+01 1.40220e+00 1906 2006 5 2.66566e+01 1.75659e+00 3203 2006 6 2.99891e+01 9.82248e-01 3158 2006 7 3.07987e+01 1.29597e+00 3567 2006 8 3.19715e+01 9.61153e-01 4029 2006 9 3.15916e+01 9.77800e-01 5298 2006 10 2.96175e+01 9.05631e-01 3678 2006 11 2.59267e+01 2.27520e+00 2930 2006 12 1.90941e+01 1.99685e+00 2434 2007 1 1.48728e+01 8.82380e-01 2239 2007 2 1.53744e+01 9.27908e-01 2400 2007 3 1.76471e+01 1.35236e+00 2303 2007 4 1.94352e+01 1.45172e+00 1247 2007 5 2.64636e+01 1.70488e+00 1735 2007 6 2.93344e+01 1.21202e+00 2557 2007 7 3.07920e+01 1.37763e+00 3910 2007 8 3.19435e+01 9.12806e-01 4572 2007 9 3.15229e+01 1.05241e+00 4925 2007 10 2.96376e+01 8.72813e-01 5524 2007 11 2.60028e+01 1.65334e+00 3999 2007 12 2.07197e+01 1.52983e+00 2299 2008 1 1.59872e+01 1.62047e+00 1720 2008 2 1.48984e+01 1.24376e+00 1684 2008 3 1.75771e+01 1.32612e+00 776 2008 4 2.11116e+01 1.67511e+00 1415 2008 5 2.47807e+01 1.85181e+00 1694 2008 6 2.85943e+01 1.67945e+00 1411 2008 7 3.07090e+01 1.47895e+00 2705 2008 8 3.19840e+01 1.15775e+00 3944 2008 9 3.10554e+01 1.37603e+00 3689 2008 10 2.84484e+01 1.11766e+00 3736 2008 11 2.41104e+01 1.21882e+00 2388 2008 12 2.07409e+01 1.55872e+00 3487 2009 1 1.70568e+01 6.39866e-01 2554 2009 2 1.72214e+01 9.65453e-01 1363 2009 3 1.74745e+01 1.46712e+00 2147 2009 4 1.98840e+01 1.52943e+00 1364 2009 5 2.52810e+01 2.53995e+00 1605 2009 6 2.85860e+01 2.27697e+00 2057 2009 7 3.06014e+01 1.49334e+00 2581 2009 8 3.07860e+01 9.16824e-01 3973 2009 9 3.04067e+01 1.12288e+00 4617 2009 10 2.80900e+01 7.91287e-01 3311 2009 11 2.55463e+01 1.31286e+00 3608 2009 12 2.05072e+01 1.28580e+00 2642 2010 1 1.83161e+01 1.15826e+00 2888 2010 2 1.72985e+01 1.04471e+00 1761 2010 3 1.92004e+01 1.68666e+00 1919 2010 4 2.15406e+01 1.48043e+00 1362 2010 5 2.54017e+01 1.59686e+00 1685 2010 6 2.91483e+01 1.24054e+00 1826 2010 7 3.10990e+01 1.32257e+00 2766 2010 8 3.29525e+01 1.20475e+00 3876 2010 9 3.20446e+01 1.33399e+00 4550 2010 10 2.98582e+01 1.04661e+00 4660 2010 11 2.56870e+01 1.39933e+00 3891 2010 12 2.13051e+01 1.62483e+00 2617 2011 1 1.88003e+01 7.28480e-01 2067 2011 2 1.71966e+01 1.26946e+00 2249 2011 3 1.79092e+01 1.28045e+00 2818 2011 4 2.03370e+01 1.24593e+00 904 2011 5 2.58642e+01 2.85713e+00 1706 2011 6 2.90544e+01 1.29433e+00 1951 2011 7 3.07175e+01 1.62834e+00 3273 2011 8 3.24081e+01 8.90380e-01 4675 2011 9 3.17697e+01 8.20523e-01 4891 2011 10 2.85825e+01 1.49505e+00 4631 2011 11 2.33889e+01 1.30514e+00 2422 2011 12 1.91707e+01 1.06193e+00 3552 2012 1 1.75743e+01 1.03325e+00 3106 2012 2 1.60245e+01 1.18808e+00 1783 2012 3 1.63305e+01 1.34892e+00 2038 2012 4 1.94592e+01 1.35325e+00 1235 2012 5 2.48986e+01 1.92245e+00 831 2012 6 2.91508e+01 1.62684e+00 2820 2012 7 3.18904e+01 1.55141e+00 3747 2012 8 3.21614e+01 9.99950e-01 4848 2012 9 3.10304e+01 1.07265e+00 4846 2012 10 2.96970e+01 1.25613e+00 4711 2012 11 2.63792e+01 1.71562e+00 3309 2012 12 2.09119e+01 1.30093e+00 2438 2013 1 1.78529e+01 1.45865e+00 2123 2013 2 1.75041e+01 8.99163e-01 2418 2013 3 1.85399e+01 1.21329e+00 2016 2013 4 2.15974e+01 1.58826e+00 1656 2013 5 2.52970e+01 2.06737e+00 2838 2013 6 2.88198e+01 1.23730e+00 2610 2013 7 3.12313e+01 7.98566e-01 4170 2013 8 3.22246e+01 9.07423e-01 4975 2013 9 3.15661e+01 1.01563e+00 5170 2013 10 2.79797e+01 1.27632e+00 4088 2013 11 2.47092e+01 9.14769e-01 3477 2013 12 2.05679e+01 1.91988e+00 2948 2014 1 1.81805e+01 6.88118e-01 2664 2014 2 1.70756e+01 7.53077e-01 2912 2014 3 1.92418e+01 1.25686e+00 2402 2014 4 2.18371e+01 1.88535e+00 1692 2014 5 2.67209e+01 1.76163e+00 2469 2014 6 2.98066e+01 1.35397e+00 3608 2014 7 3.16910e+01 9.46131e-01 4431 2014 8 3.21724e+01 8.79375e-01 4604 2014 9 3.19327e+01 1.06001e+00 5800 2014 10 2.98085e+01 1.51546e+00 5239 2014 11 2.55055e+01 1.46536e+00 3653 2014 12 2.15911e+01 1.03001e+00 3559 2015 1 1.81825e+01 1.37730e+00 3192 2015 2 1.73878e+01 1.03000e+00 2166 2015 3 1.87681e+01 1.03103e+00 2292 2015 4 2.15936e+01 1.76531e+00 1412 2015 5 2.57013e+01 1.91200e+00 1696 2015 6 2.90431e+01 1.24233e+00 2762 2015 7 3.12798e+01 1.53358e+00 4189 2015 8 3.29356e+01 7.51646e-01 5493 2015 9 3.21700e+01 1.11158e+00 4959 2015 10 3.05300e+01 9.49715e-01 4389 2015 11 2.59215e+01 1.63532e+00 2918 2015 12 2.12443e+01 1.53125e+00 2326 2016 1 1.87187e+01 7.91505e-01 3197 2016 2 1.78267e+01 6.72557e-01 2857 2016 3 1.96515e+01 9.62626e-01 1975 2016 4 2.19339e+01 1.60903e+00 2871 2016 5 2.67364e+01 1.55268e+00 2880 2016 6 2.96128e+01 1.38082e+00 3321 2016 7 3.24921e+01 1.21848e+00 4605 2016 8 3.33426e+01 8.83032e-01 5089 2016 9 3.19005e+01 1.21168e+00 4537 2016 10 2.93059e+01 8.28882e-01 4495 2016 11 2.61267e+01 1.96313e+00 2290 2016 12 2.01259e+01 1.10915e+00 2585 2017 1 1.74096e+01 1.15640e+00 2499 2017 2 1.62797e+01 7.60959e-01 2696 2017 3 1.77225e+01 1.66631e+00 1688 2017 4 2.13862e+01 1.56527e+00 1291 2017 5 2.58509e+01 1.85617e+00 2537 2017 6 2.94836e+01 1.70161e+00 2700 2017 7 3.22922e+01 1.16131e+00 4287 2017 8 3.38285e+01 7.37808e-01 5050 2017 9 3.25905e+01 1.12487e+00 5207 2017 10 2.97912e+01 1.15264e+00 4568 2017 11 2.69164e+01 1.77156e+00 2674 2017 12 2.03278e+01 1.47333e+00 2586 2018 1 1.85753e+01 1.15473e+00 3687 2018 2 1.79948e+01 9.43925e-01 1562 2018 3 1.99833e+01 1.32147e+00 2820 2018 4 2.16713e+01 1.92749e+00 1781 2018 5 2.68356e+01 1.69645e+00 2827 2018 6 2.98543e+01 1.14052e+00 2861 2018 7 3.16210e+01 9.93223e-01 3859 2018 8 3.17091e+01 7.94321e-01 5122 2018 9 3.24630e+01 8.28466e-01 5359 2018 10 3.06668e+01 1.19713e+00 4942 2018 11 2.43647e+01 1.33764e+00 1306 2018 12 2.14156e+01 1.14775e+00 3723 2019 1 1.76428e+01 1.71727e+00 1555 2019 2 1.70308e+01 7.20973e-01 2609 2019 3 1.79968e+01 1.08057e+00 3091 2019 4 2.17527e+01 1.00983e+00 2620 2019 5 2.70589e+01 2.68478e+00 3379 2019 6 3.19945e+01 9.82352e-01 5390 2019 7 3.18219e+01 7.68327e-01 4734 2019 8 3.24905e+01 8.87144e-01 5688 2019 9 3.25908e+01 7.11273e-01 6323 2019 10 3.17946e+01 1.22703e+00 5156 2019 11 2.61850e+01 1.77965e+00 4320 2019 12 2.12512e+01 1.04216e+00 4884 2020 1 1.82815e+01 1.01985e+00 4631 2020 2 1.66298e+01 6.57296e-01 3925 2020 3 1.88734e+01 1.26648e+00 3684 2020 4 2.25663e+01 1.22010e+00 2872 2020 5 2.73278e+01 1.76536e+00 4442 2020 6 3.00343e+01 1.20055e+00 6877 2020 7 3.38006e+01 1.34089e+00 5709 2020 8 3.36791e+01 8.04516e-01 4430 2020 9 3.27803e+01 7.91110e-01 6274 2020 10 3.06647e+01 1.21007e+00 7211 2020 11 2.74612e+01 1.57453e+00 4123 2020 12 2.19877e+01 1.02441e+00 4000 2021 1 1.83662e+01 1.07188e+00 4565 2021 2 1.90176e+01 8.93741e-01 4249 2021 3 1.93761e+01 8.27010e-01 4282 2021 4 2.27512e+01 2.14685e+00 2681 2021 5 2.79851e+01 2.03303e+00 4658 2021 6 2.99970e+01 8.33695e-01 5719 2021 7 3.33035e+01 1.21312e+00 6316 2021 8 3.37238e+01 6.96171e-01 6103 2021 9 3.21059e+01 1.19356e+00 6266 2021 10 2.97923e+01 1.12720e+00 6553 2021 11 2.61551e+01 1.81840e+00 5032 2021 12 2.19524e+01 1.28099e+00 2737 2022 1 1.75318e+01 1.30889e+00 4153 2022 2 1.73769e+01 9.76707e-01 4616 2022 3 -7.08329e+01 2.87168e+02 3663 2022 4 2.10833e+01 1.00811e+00 1168 2022 5 2.52464e+01 1.37307e+00 3865 2022 6 3.04246e+01 1.27063e+00 5146 2022 7 3.13171e+01 1.04106e+00 4002 2022 8 3.36477e+01 8.54558e-01 5437 2022 9 3.24475e+01 1.23864e+00 5982 2022 10 3.04437e+01 6.32464e-01 4207 2022 11 2.61912e+01 1.61324e+00 2626 2022 12 2.21164e+01 1.07202e+00 3928 2023 1 1.82041e+01 9.25952e-01 3452 2023 2 1.65696e+01 7.59276e-01 2523 2023 3 1.92044e+01 1.10701e+00 4440 2023 4 2.24150e+01 1.92078e+00 4305 2023 5 2.65064e+01 1.69387e+00 3826 2023 6 3.01973e+01 1.33840e+00 5604 2023 7 3.28463e+01 1.05038e+00 5890 2023 8 3.39524e+01 8.40286e-01 6203 2023 9 3.30992e+01 7.94223e-01 6369 2023 10 3.10501e+01 9.57550e-01 5766 2023 11 2.72097e+01 1.80073e+00 4122 2023 12 2.28882e+01 8.78312e-01 4403 2024 1 2.03285e+01 9.65606e-01 4354 2024 2 1.95503e+01 6.82192e-01 4501 2024 3 1.98927e+01 8.70734e-01 3712 2024 4 2.23279e+01 5.64228e-01 693