YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.65624e+01 1.79149e-01 93 2000 3 1.96320e+01 2.16905e+00 552 2000 4 2.18387e+01 1.01740e+00 628 2000 5 2.55839e+01 2.12386e+00 896 2000 6 2.77911e+01 6.51533e-01 226 2000 7 2.89611e+01 7.30408e-01 449 2000 8 2.95757e+01 9.65475e-01 345 2000 9 2.69123e+01 5.60637e-01 247 2000 10 2.31421e+01 7.96477e-01 976 2000 11 2.16464e+01 2.09560e+00 550 2000 12 1.50799e+01 1.47535e+00 369 2001 1 1.25922e+01 1.49852e-01 130 2001 2 1.70595e+01 9.64476e-01 296 2001 3 1.66142e+01 1.38976e+00 460 2001 4 2.04488e+01 1.89862e+00 759 2001 5 2.44013e+01 1.69326e+00 876 2001 6 2.75709e+01 7.51426e-01 256 2001 7 2.96402e+01 9.72291e-01 189 2001 8 2.88717e+01 1.09633e+00 616 2001 9 2.71210e+01 1.31049e+00 510 2001 10 2.30144e+01 1.69011e+00 541 2001 11 2.02539e+01 4.22189e-01 722 2001 12 1.95244e+01 2.15034e+00 591 2002 1 1.38267e+01 2.02036e-01 100 2002 2 1.50341e+01 6.39659e-01 384 2002 3 1.69678e+01 3.80981e-02 64 2002 4 2.41122e+01 1.92174e+00 583 2002 5 2.61275e+01 1.37507e+00 659 2002 6 2.81890e+01 7.97681e-01 384 2002 7 2.92821e+01 1.34024e+00 1828 2002 8 2.91911e+01 8.18567e-01 2078 2002 9 2.85716e+01 9.16492e-01 2022 2002 10 2.73106e+01 1.40391e+00 2759 2002 11 2.16080e+01 2.54202e+00 2160 2002 12 1.55111e+01 9.91302e-01 1339 2003 1 1.30669e+01 1.07405e+00 2095 2003 2 1.41670e+01 1.14982e+00 849 2003 3 2.03895e+01 1.61211e+00 1253 2003 4 2.12774e+01 1.73811e+00 3051 2003 5 2.64955e+01 1.33453e+00 2707 2003 6 2.85430e+01 1.35977e+00 2301 2003 7 2.93464e+01 1.41694e+00 1590 2003 8 2.89956e+01 1.22717e+00 1748 2003 9 2.82843e+01 1.01461e+00 2262 2003 10 2.43849e+01 9.47971e-01 2688 2003 11 2.20251e+01 1.47192e+00 2992 2003 12 1.54804e+01 1.74739e+00 1441 2004 1 1.38521e+01 8.75631e-01 1542 2004 2 1.37609e+01 9.74649e-01 509 2004 3 1.81098e+01 1.44321e+00 2714 2004 4 2.03674e+01 1.38412e+00 2621 2004 5 2.56681e+01 1.83322e+00 3496 2004 6 2.90867e+01 1.26232e+00 2422 2004 7 3.01443e+01 1.28622e+00 2403 2004 8 2.95374e+01 1.30926e+00 2619 2004 9 2.72689e+01 1.77994e+00 2300 2004 10 2.50310e+01 1.44619e+00 2750 2004 11 2.22290e+01 2.45082e+00 2008 2004 12 1.59086e+01 2.18261e+00 2130 2005 1 1.43787e+01 1.87469e+00 1231 2005 2 1.41403e+01 7.91337e-01 996 2005 3 1.62028e+01 1.58510e+00 1743 2005 4 2.02860e+01 9.37841e-01 2563 2005 5 2.44773e+01 2.13838e+00 3070 2005 6 2.82354e+01 1.31882e+00 2359 2005 7 3.01670e+01 1.55740e+00 2181 2005 8 2.98719e+01 1.43450e+00 2092 2005 9 2.80947e+01 1.10047e+00 3220 2005 10 2.54331e+01 2.06629e+00 3335 2005 11 2.05708e+01 1.48740e+00 2388 2005 12 1.52184e+01 1.84623e+00 1576 2006 1 1.47405e+01 1.02738e+00 1544 2006 2 1.49741e+01 1.32789e+00 1689 2006 3 1.82226e+01 1.06211e+00 2699 2006 4 2.21209e+01 2.06154e+00 2943 2006 5 2.49109e+01 1.41720e+00 3481 2006 6 2.79527e+01 1.25787e+00 3159 2006 7 2.98960e+01 1.24472e+00 2582 2006 8 3.05040e+01 1.04442e+00 2766 2006 9 2.84912e+01 1.27259e+00 2611 2006 10 2.51636e+01 1.93509e+00 3166 2006 11 1.89307e+01 1.81768e+00 2222 2006 12 1.63657e+01 1.27599e+00 1096 2007 1 1.51756e+01 9.73412e-01 1012 2007 2 1.39335e+01 6.63035e-01 1091 2007 3 1.78384e+01 1.55830e+00 2848 2007 4 2.07679e+01 1.27665e+00 2086 2007 5 2.42013e+01 9.64128e-01 3672 2007 6 2.73514e+01 1.89351e+00 2783 2007 7 2.99682e+01 1.61769e+00 1864 2007 8 3.04190e+01 1.51354e+00 2866 2007 9 2.87275e+01 1.40759e+00 2567 2007 10 2.62354e+01 1.25881e+00 2075 2007 11 2.01436e+01 1.74584e+00 3066 2007 12 1.79630e+01 1.32746e+00 1577 2008 1 1.45700e+01 1.34237e+00 1122 2008 2 1.58218e+01 1.33189e+00 1590 2008 3 1.76205e+01 1.25811e+00 2203 2008 4 2.14428e+01 1.17620e+00 2950 2008 5 2.47005e+01 1.88821e+00 2935 2008 6 2.87759e+01 1.06772e+00 2495 2008 7 2.93016e+01 1.55828e+00 2073 2008 8 2.83098e+01 1.32959e+00 1702 2008 9 2.77207e+01 1.48942e+00 2607 2008 10 2.43105e+01 1.64995e+00 3695 2008 11 1.85049e+01 1.75845e+00 2447 2008 12 1.57746e+01 9.01723e-01 1540 2009 1 1.48383e+01 1.51616e+00 1791 2009 2 1.41455e+01 1.05709e+00 1867 2009 3 1.78175e+01 2.01677e+00 2139 2009 4 2.13706e+01 1.64932e+00 2734 2009 5 2.55291e+01 1.47478e+00 2436 2009 6 2.79533e+01 1.00797e+00 2674 2009 7 2.89962e+01 1.33284e+00 2061 2009 8 2.98209e+01 1.29054e+00 2174 2009 9 2.84955e+01 8.15507e-01 2425 2009 10 2.61646e+01 2.21802e+00 2957 2009 11 2.00246e+01 1.44944e+00 1990 2009 12 1.57867e+01 1.62157e+00 563 2010 1 1.21671e+01 1.81749e+00 1589 2010 2 1.26000e+01 1.07303e+00 1805 2010 3 1.51853e+01 1.69905e+00 1855 2010 4 2.09724e+01 1.69937e+00 2456 2010 5 2.66727e+01 2.09373e+00 3429 2010 6 3.01972e+01 1.44177e+00 2998 2010 7 2.98206e+01 1.67798e+00 2544 2010 8 3.01058e+01 1.30867e+00 1384 2010 9 2.91826e+01 1.10582e+00 2866 2010 10 2.50403e+01 1.05488e+00 4076 2010 11 2.06086e+01 1.30557e+00 2946 2010 12 1.52948e+01 2.95647e+00 2321 2011 1 1.14588e+01 1.01675e+00 1729 2011 2 1.29980e+01 1.68961e+00 904 2011 3 1.86033e+01 1.68499e+00 2445 2011 4 2.31965e+01 1.51404e+00 3543 2011 5 2.56256e+01 1.46499e+00 3591 2011 6 2.94413e+01 1.08607e+00 2361 2011 7 2.95604e+01 1.35314e+00 2293 2011 8 3.08373e+01 7.66521e-01 2745 2011 9 2.84484e+01 9.02904e-01 2705 2011 10 2.45094e+01 1.69283e+00 2789 2011 11 1.93545e+01 1.19437e+00 2172 2011 12 1.71134e+01 8.62761e-01 1298 2012 1 1.54876e+01 1.11148e+00 2190 2012 2 1.63041e+01 1.07457e+00 781 2012 3 2.06053e+01 2.24942e+00 2845 2012 4 2.32643e+01 8.14648e-01 3441 2012 5 2.62659e+01 1.18340e+00 3479 2012 6 2.73753e+01 8.43992e-01 2507 2012 7 2.92217e+01 1.52308e+00 2378 2012 8 2.90913e+01 1.22652e+00 1611 2012 9 2.85541e+01 1.17130e+00 2527 2012 10 2.50842e+01 1.91163e+00 3099 2012 11 1.91026e+01 1.14430e+00 2604 2012 12 1.72316e+01 1.83779e+00 1687 2013 1 1.50432e+01 1.29974e+00 1155 2013 2 1.60373e+01 1.50374e+00 1692 2013 3 1.61983e+01 1.10614e+00 2589 2013 4 2.06728e+01 1.76481e+00 2092 2013 5 2.44154e+01 1.94655e+00 2635 2013 6 2.81215e+01 1.65318e+00 2245 2013 7 2.87645e+01 1.75587e+00 1418 2013 8 3.01367e+01 1.47393e+00 2930 2013 9 2.95028e+01 1.73352e+00 2945 2013 10 2.56670e+01 1.36395e+00 2631 2013 11 2.07498e+01 2.21437e+00 1789 2013 12 1.73952e+01 1.36025e+00 1667 2014 1 1.30253e+01 1.12018e+00 1208 2014 2 1.47272e+01 1.79157e+00 1072 2014 3 1.67429e+01 1.10552e+00 2060 2014 4 2.08153e+01 1.55500e+00 2368 2014 5 2.52634e+01 1.42800e+00 2384 2014 6 2.84190e+01 1.89719e+00 2562 2014 7 2.98769e+01 1.22186e+00 2198 2014 8 2.99053e+01 1.18255e+00 2915 2014 9 2.87890e+01 1.27437e+00 1421 2014 10 2.54298e+01 1.52372e+00 3532 2014 11 1.88689e+01 2.11307e+00 2463 2014 12 1.59898e+01 1.23981e+00 1546 2015 1 1.46225e+01 1.04008e+00 1774 2015 2 1.36670e+01 1.04497e+00 1874 2015 3 1.89411e+01 1.89569e+00 1468 2015 4 2.27419e+01 2.12779e+00 1345 2015 5 2.66048e+01 1.69299e+00 4002 2015 6 2.98812e+01 1.02006e+00 2373 2015 7 2.94395e+01 1.91426e+00 1854 2015 8 3.01462e+01 1.61533e+00 2119 2015 9 2.83031e+01 1.79279e+00 1368 2015 10 2.42806e+01 1.07785e+00 2530 2015 11 2.24523e+01 2.30755e+00 2034 2015 12 1.89045e+01 9.82304e-01 1398 2016 1 1.57846e+01 1.73609e+00 1567 2016 2 1.44836e+01 1.21496e+00 1676 2016 3 1.83815e+01 1.73219e+00 1704 2016 4 2.19620e+01 1.80600e+00 2170 2016 5 2.57212e+01 1.34315e+00 3122 2016 6 2.92555e+01 1.10485e+00 2716 2016 7 3.10968e+01 1.14936e+00 3209 2016 8 3.02148e+01 1.31533e+00 2340 2016 9 2.93529e+01 9.84001e-01 2617 2016 10 2.60430e+01 1.64902e+00 2984 2016 11 2.16839e+01 1.92848e+00 2887 2016 12 1.79970e+01 1.38096e+00 1693 2017 1 1.64559e+01 1.34599e+00 1441 2017 2 1.77243e+01 1.52481e+00 2156 2017 3 1.86102e+01 1.54572e+00 2837 2017 4 2.28297e+01 1.25103e+00 2714 2017 5 2.51666e+01 1.21627e+00 2237 2017 6 2.84597e+01 1.54558e+00 1825 2017 7 3.04659e+01 1.46717e+00 1829 2017 8 3.03329e+01 1.38010e+00 2348 2017 9 2.82391e+01 1.40394e+00 2613 2017 10 2.55617e+01 1.77738e+00 3687 2017 11 2.09643e+01 1.13893e+00 2987 2017 12 1.75334e+01 2.03995e+00 1463 2018 1 1.20827e+01 7.45403e-01 1390 2018 2 1.81129e+01 3.15617e+00 941 2018 3 1.84125e+01 1.29566e+00 2764 2018 4 2.10611e+01 1.21469e+00 2235 2018 5 2.48605e+01 1.77667e+00 2534 2018 6 2.88453e+01 1.62922e+00 1826 2018 7 3.00324e+01 1.18382e+00 2105 2018 8 3.01502e+01 1.55893e+00 2067 2018 9 3.02562e+01 1.34808e+00 3386 2018 10 2.73135e+01 2.14087e+00 2838 2018 11 2.00669e+01 2.06475e+00 1149 2018 12 1.61370e+01 1.83791e+00 1130 2019 1 1.56253e+01 1.53922e+00 1714 2019 2 1.65991e+01 2.40399e+00 894 2019 3 1.84394e+01 1.22388e+00 2192 2019 4 2.19398e+01 1.65351e+00 2270 2019 5 2.70880e+01 2.02335e+00 3576 2019 6 2.92888e+01 8.85354e-01 1799 2019 7 2.98377e+01 1.34683e+00 1918 2019 8 3.02795e+01 1.11684e+00 2294 2019 9 2.93813e+01 1.03312e+00 3955 2019 10 2.70411e+01 1.78175e+00 2675 2019 11 1.95527e+01 2.39256e+00 2309 2019 12 1.69008e+01 9.60285e-01 1543 2020 1 1.62119e+01 9.60792e-01 1937 2020 2 1.55003e+01 9.08327e-01 1676 2020 3 2.07478e+01 3.21855e+00 2746 2020 4 2.34405e+01 1.07151e+00 2022 2020 5 2.47088e+01 1.16677e+00 2909 2020 6 2.92104e+01 1.04140e+00 2508 2020 7 2.96384e+01 1.17702e+00 2335 2020 8 3.09603e+01 1.12273e+00 1579 2020 9 2.87512e+01 1.90599e+00 1699 2020 10 2.55687e+01 8.24455e-01 2403 2020 11 2.24054e+01 1.46097e+00 3120 2020 12 1.61248e+01 1.75804e+00 2871 2021 1 1.40461e+01 1.23172e+00 1915 2021 2 1.57606e+01 1.48822e+00 1916 2021 3 1.84226e+01 1.19864e+00 2304 2021 4 2.13373e+01 1.11141e+00 2599 2021 5 2.53083e+01 1.39903e+00 2761 2021 6 2.77208e+01 1.14910e+00 1942 2021 7 2.94600e+01 1.12837e+00 1543 2021 8 3.01800e+01 1.21816e+00 1599 2021 9 2.85572e+01 1.25662e+00 2007 2021 10 2.63853e+01 1.47642e+00 2515 2021 11 1.97241e+01 1.35393e+00 2861 2021 12 1.82834e+01 9.55395e-01 2358 2022 1 1.63240e+01 1.97387e+00 2682 2022 2 1.50082e+01 1.80453e+00 2038 2022 3 1.90480e+01 1.06795e+00 2714 2022 4 2.26606e+01 1.22134e+00 1962 2022 5 2.65343e+01 1.36813e+00 2838 2022 6 2.96588e+01 1.28118e+00 2562 2022 7 3.04666e+01 1.15140e+00 2006 2022 8 3.10461e+01 1.12667e+00 1837 2022 9 2.84644e+01 1.75221e+00 2008 2022 10 2.39692e+01 1.27570e+00 3334 2022 11 2.14777e+01 2.08133e+00 1785 2022 12 1.76122e+01 2.26562e+00 3015 2023 1 1.48773e+01 7.91563e-01 2419 2023 2 1.67611e+01 1.27590e+00 2088 2023 3 2.03023e+01 1.39561e+00 3051 2023 4 2.24573e+01 9.41054e-01 2032 2023 5 2.51430e+01 1.61519e+00 2253 2023 6 2.73446e+01 1.38697e+00 2423 2023 7 3.01166e+01 1.11044e+00 2300 2023 8 3.12439e+01 1.00614e+00 2760 2023 9 2.97018e+01 1.29638e+00 2543 2023 10 2.42563e+01 1.36726e+00 3083 2023 11 2.10600e+01 1.41057e+00 2053 2023 12 1.52702e+01 1.52363e+00 1316 2024 1 1.36835e+01 9.01201e-01 1260 2024 2 1.49462e+01 8.48694e-01 1893 2024 3 1.95745e+01 1.20151e+00 1813 2024 4 2.10269e+01 1.13511e-01 80