YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.82143e-01 3.34191e-02 14 2000 3 1.61670e+00 1.24729e+00 88 2000 4 6.19480e+00 1.59663e+00 255 2000 5 1.21695e+01 2.32140e+00 185 2000 6 1.76824e+01 1.59520e+00 222 2000 7 1.99798e+01 1.14819e+00 690 2000 8 2.18650e+01 5.45236e-01 708 2000 9 1.82641e+01 2.77543e+00 786 2000 10 1.33476e+01 1.11541e+00 738 2000 11 1.10876e+01 1.02551e+00 319 2000 12 1.89767e+00 1.55320e+00 75 2001 1 2.15000e-01 0.00000e+00 1 2001 2 9.50000e-02 8.28402e-02 8 2001 3 1.08688e+00 5.02251e-01 181 2001 4 5.54217e+00 1.32386e+00 244 2001 5 1.61338e+01 1.10542e+00 69 2001 6 1.57663e+01 1.32663e+00 98 2001 7 2.05173e+01 2.18521e+00 598 2001 8 2.31481e+01 1.64621e+00 1415 2001 9 1.93069e+01 2.33232e+00 1170 2001 10 1.21818e+01 2.41234e+00 485 2001 11 8.74017e+00 5.39315e-01 480 2001 12 6.08323e+00 1.32409e+00 231 2002 1 1.42174e+00 2.01471e-01 23 2002 2 -2.64891e-01 3.63006e-01 46 2002 3 1.26056e+00 2.23140e-01 72 2002 4 4.39945e+00 2.71321e+00 238 2002 5 9.42551e+00 1.44238e+00 395 2002 6 1.63015e+01 1.79674e+00 120 2002 7 2.29078e+01 9.30615e-01 1820 2002 8 2.21731e+01 1.17435e+00 3500 2002 9 2.07739e+01 1.79490e+00 2847 2002 10 1.40044e+01 1.98208e+00 1307 2002 11 5.26846e+00 1.45100e+00 507 2002 12 1.21360e+00 8.94250e-01 253 2003 1 2.98810e-01 1.36110e-01 21 2003 2 -3.17000e-01 2.74955e-02 5 2003 3 1.55524e+00 2.99860e-01 63 2003 4 4.58304e+00 1.92854e+00 799 2003 5 9.91068e+00 2.63738e+00 400 2003 6 1.70184e+01 1.52929e+00 1034 2003 7 2.02611e+01 1.14526e+00 2272 2003 8 2.30237e+01 9.05222e-01 3855 2003 9 2.07082e+01 1.12325e+00 2954 2003 10 9.61236e+00 5.26837e-01 466 2003 11 7.36057e+00 9.31325e-01 795 2003 12 3.12849e+00 8.53730e-01 345 2004 1 1.65469e+00 5.63123e-01 16 2004 2 -1.05000e-01 0.00000e+00 2 2004 3 7.08333e-01 7.47176e-01 3 2004 4 5.10514e+00 1.86784e+00 730 2004 5 1.07079e+01 1.93565e+00 506 2004 6 1.63189e+01 1.60472e+00 616 2004 7 1.96607e+01 1.87655e+00 2088 2004 8 2.07649e+01 9.07784e-01 2386 2004 9 2.07488e+01 9.12908e-01 3763 2004 10 1.47512e+01 2.00754e+00 1132 2004 11 8.69787e+00 1.16099e+00 992 2004 12 3.38648e+00 9.49857e-01 155 2005 1 nan nan 0 2005 2 3.75581e-01 7.71981e-02 86 2005 3 7.25833e-01 2.96935e-01 18 2005 4 4.94013e+00 2.09970e+00 157 2005 5 1.13535e+01 2.74888e+00 999 2005 6 1.99831e+01 2.40837e+00 1272 2005 7 2.26540e+01 1.57159e+00 2953 2005 8 2.29342e+01 1.09377e+00 2570 2005 9 2.10452e+01 9.60148e-01 3446 2005 10 1.49241e+01 2.72035e+00 1620 2005 11 9.25934e+00 1.72256e+00 423 2005 12 2.29111e+00 7.08193e-01 9 2006 1 1.17403e-01 3.80415e-01 129 2006 2 2.14167e-01 5.16964e-02 42 2006 3 1.25553e+00 8.24457e-01 281 2006 4 5.70630e+00 2.53636e+00 820 2006 5 1.29301e+01 1.14607e+00 493 2006 6 1.94207e+01 9.48850e-01 898 2006 7 2.25535e+01 1.51058e+00 2498 2006 8 2.29106e+01 1.22426e+00 2964 2006 9 1.82713e+01 2.11152e+00 1762 2006 10 1.14798e+01 2.54109e+00 955 2006 11 6.64488e+00 1.19835e+00 568 2006 12 2.84734e+00 5.81762e-01 209 2007 1 2.75527e+00 5.84158e-01 240 2007 2 nan nan 0 2007 3 3.06295e-01 5.32859e-01 224 2007 4 3.93275e+00 2.01520e+00 635 2007 5 1.40201e+01 2.68345e+00 988 2007 6 2.05976e+01 1.97672e+00 1986 2007 7 2.13271e+01 1.53688e+00 2741 2007 8 2.31826e+01 1.16111e+00 2928 2007 9 2.03942e+01 1.94509e+00 2428 2007 10 1.65058e+01 2.58706e+00 1305 2007 11 9.51928e+00 2.38153e+00 883 2007 12 7.18064e-01 3.65766e-01 31 2008 1 7.30000e-01 2.50000e-02 2 2008 2 -5.08571e-01 1.56511e-01 21 2008 3 5.90782e-02 4.52826e-01 179 2008 4 3.01163e+00 2.03499e+00 255 2008 5 1.23705e+01 1.35376e+00 882 2008 6 1.85897e+01 1.20564e+00 865 2008 7 1.98849e+01 1.59955e+00 1813 2008 8 2.20890e+01 8.25949e-01 3578 2008 9 2.00771e+01 1.55917e+00 2651 2008 10 1.45114e+01 2.03763e+00 2017 2008 11 7.86901e+00 1.80323e+00 497 2008 12 3.08000e+00 0.00000e+00 2 2009 1 nan nan 0 2009 2 5.06250e-01 9.62662e-02 4 2009 3 6.57521e-01 8.13491e-01 363 2009 4 4.74648e+00 1.31287e+00 924 2009 5 1.05212e+01 1.88160e+00 746 2009 6 1.82681e+01 2.64460e+00 1816 2009 7 1.93359e+01 7.74718e-01 2154 2009 8 2.07337e+01 2.08049e+00 2130 2009 9 1.96758e+01 8.31105e-01 2759 2009 10 1.29590e+01 2.69420e+00 1017 2009 11 8.38958e+00 1.19508e+00 961 2009 12 6.15320e+00 1.14086e+00 219 2010 1 nan nan 0 2010 2 -1.80000e-01 0.00000e+00 1 2010 3 1.92103e+00 1.16544e+00 535 2010 4 8.04181e+00 1.59916e+00 1584 2010 5 1.48707e+01 3.88122e+00 1742 2010 6 2.04162e+01 1.07983e+00 1646 2010 7 2.31928e+01 1.35734e+00 2720 2010 8 2.30746e+01 1.23950e+00 2657 2010 9 1.72411e+01 3.03227e+00 1343 2010 10 1.37699e+01 1.22924e+00 2354 2010 11 9.48019e+00 1.12427e+00 604 2010 12 1.97278e+00 8.97246e-01 9 2011 1 9.25667e-01 4.85066e-02 15 2011 2 2.38229e-01 2.87055e-01 48 2011 3 1.83727e-01 1.85446e-01 55 2011 4 3.97521e+00 1.93624e+00 309 2011 5 1.06643e+01 1.84635e+00 754 2011 6 1.81019e+01 1.26375e+00 1343 2011 7 2.32344e+01 1.63784e+00 2345 2011 8 2.28888e+01 1.01312e+00 2818 2011 9 1.90545e+01 1.45826e+00 2266 2011 10 1.37309e+01 2.17427e+00 1128 2011 11 8.17653e+00 1.49227e+00 918 2011 12 3.83356e+00 7.74753e-01 267 2012 1 4.37126e-01 2.81400e-01 87 2012 2 4.10833e-01 2.21164e-01 144 2012 3 4.27355e+00 2.15038e+00 148 2012 4 8.35418e+00 8.84425e-01 1465 2012 5 1.45729e+01 2.67360e+00 1543 2012 6 1.94111e+01 2.26791e+00 2168 2012 7 2.42962e+01 1.10940e+00 3167 2012 8 2.25683e+01 1.30278e+00 3328 2012 9 1.96568e+01 2.87647e+00 2753 2012 10 1.37051e+01 1.93698e+00 1369 2012 11 6.21441e+00 1.12793e+00 537 2012 12 1.69165e+00 9.86220e-01 191 2013 1 -3.70000e-01 0.00000e+00 1 2013 2 nan nan 0 2013 3 8.81747e-01 5.91092e-01 332 2013 4 3.34340e+00 1.23886e+00 1029 2013 5 1.27978e+01 2.27334e+00 367 2013 6 1.86529e+01 1.82076e+00 1554 2013 7 2.32804e+01 1.83189e+00 2293 2013 8 2.15679e+01 1.01038e+00 3751 2013 9 1.97367e+01 1.78560e+00 2117 2013 10 1.64880e+01 2.63251e+00 2159 2013 11 5.86638e+00 1.54352e+00 567 2013 12 1.43219e+00 3.24381e-01 48 2014 1 nan nan 0 2014 2 nan nan 0 2014 3 3.43056e-01 1.28519e-01 72 2014 4 1.46373e+00 1.02974e+00 114 2014 5 1.12750e+01 2.40788e+00 956 2014 6 1.87163e+01 2.25130e+00 1001 2014 7 1.99233e+01 1.44552e+00 1709 2014 8 2.14630e+01 9.19052e-01 2868 2014 9 1.83069e+01 2.58905e+00 2269 2014 10 1.25081e+01 1.40294e+00 1157 2014 11 8.22838e+00 1.56975e+00 321 2014 12 1.36378e+00 7.04838e-01 234 2015 1 -4.56047e-01 1.60053e-01 43 2015 2 nan nan 0 2015 3 1.07733e-01 1.00796e-01 150 2015 4 5.47254e+00 1.70069e+00 487 2015 5 1.04320e+01 1.61365e+00 442 2015 6 1.84749e+01 2.25395e+00 1451 2015 7 2.22405e+01 1.34787e+00 3195 2015 8 2.11225e+01 1.42326e+00 1863 2015 9 1.80598e+01 1.08460e+00 2120 2015 10 1.28643e+01 1.12426e+00 1051 2015 11 9.45381e+00 1.64083e+00 1045 2015 12 5.18571e+00 4.49327e-01 218 2016 1 1.29097e+00 5.76522e-01 124 2016 2 -2.95000e-01 0.00000e+00 2 2016 3 2.47527e+00 8.18303e-01 577 2016 4 5.57209e+00 2.24323e+00 624 2016 5 1.26063e+01 3.08086e+00 1788 2016 6 1.93459e+01 1.93420e+00 2494 2016 7 2.25527e+01 1.38147e+00 1914 2016 8 2.40633e+01 1.21912e+00 3033 2016 9 2.12152e+01 1.07398e+00 2605 2016 10 1.55148e+01 1.86260e+00 2074 2016 11 1.02713e+01 1.45541e+00 1401 2016 12 4.02710e+00 2.76466e+00 100 2017 1 2.59355e-01 9.61188e-02 93 2017 2 6.67394e-01 4.70103e-01 94 2017 3 1.04070e+00 3.50454e-01 341 2017 4 6.07862e+00 2.14923e+00 621 2017 5 1.20889e+01 2.12246e+00 1530 2017 6 1.76285e+01 1.55786e+00 1065 2017 7 2.13621e+01 1.56571e+00 2287 2017 8 2.13282e+01 1.01816e+00 2070 2017 9 2.04357e+01 1.74666e+00 3174 2017 10 1.66162e+01 2.61125e+00 1791 2017 11 6.62405e+00 1.84210e+00 479 2017 12 3.94914e+00 9.16195e-01 185 2018 1 2.58571e-01 5.15476e-01 14 2018 2 5.53942e-01 5.50216e-01 189 2018 3 8.81287e-01 4.88692e-01 703 2018 4 3.38882e+00 1.52713e+00 765 2018 5 1.19693e+01 2.59755e+00 584 2018 6 1.90726e+01 1.64765e+00 1596 2018 7 2.41015e+01 9.75654e-01 3256 2018 8 2.37430e+01 1.06348e+00 2608 2018 9 2.07945e+01 1.30859e+00 1996 2018 10 1.20901e+01 2.48031e+00 1202 2018 11 7.44027e+00 7.81494e-01 147 2018 12 1.52530e+00 7.68803e-01 101 2019 1 -6.23125e-01 1.72245e-01 8 2019 2 -1.83333e-01 6.68419e-02 57 2019 3 4.26799e-01 2.34388e-01 189 2019 4 5.19089e+00 2.27478e+00 610 2019 5 1.07920e+01 2.03903e+00 1257 2019 6 1.74830e+01 2.30625e+00 1666 2019 7 2.28500e+01 9.26140e-01 2673 2019 8 2.26955e+01 1.05180e+00 3553 2019 9 1.91905e+01 1.24448e+00 2063 2019 10 1.23068e+01 2.25250e+00 2110 2019 11 5.02917e+00 1.81295e+00 901 2019 12 1.24478e+00 4.60694e-01 225 2020 1 1.53333e+00 5.02181e-01 108 2020 2 8.17444e-01 1.34270e-01 45 2020 3 1.41373e+00 9.55942e-01 1002 2020 4 5.02218e+00 7.38578e-01 1526 2020 5 1.11813e+01 3.62881e+00 1778 2020 6 1.91783e+01 2.25639e+00 2850 2020 7 2.41369e+01 1.36263e+00 4003 2020 8 2.37730e+01 6.23025e-01 2410 2020 9 1.87886e+01 1.88352e+00 3212 2020 10 1.29149e+01 1.85201e+00 1709 2020 11 8.43822e+00 1.55759e+00 1576 2020 12 3.98322e+00 1.18811e+00 408 2021 1 9.17118e-01 5.10617e-01 170 2021 2 nan nan 0 2021 3 1.60937e+00 1.03719e+00 1246 2021 4 6.38954e+00 1.82034e+00 1085 2021 5 1.32061e+01 2.69992e+00 2151 2021 6 1.93335e+01 1.71244e+00 2592 2021 7 2.19817e+01 9.94587e-01 3217 2021 8 2.39175e+01 1.27117e+00 4061 2021 9 2.07782e+01 1.97681e+00 3163 2021 10 1.64809e+01 1.37249e+00 1541 2021 11 9.39085e+00 1.96750e+00 1236 2021 12 3.30331e+00 1.04100e+00 351 2022 1 -6.35000e-01 0.00000e+00 2 2022 2 4.08548e-01 1.16461e-01 31 2022 3 7.63777e-01 5.65864e-01 229 2022 4 4.44455e+00 1.64856e+00 993 2022 5 1.31823e+01 2.88278e+00 1433 2022 6 1.90416e+01 1.65060e+00 2791 2022 7 2.14481e+01 1.31995e+00 3345 2022 8 2.20063e+01 1.10658e+00 4055 2022 9 2.08663e+01 1.75449e+00 3285 2022 10 1.39258e+01 2.39887e+00 1918 2022 11 9.83444e+00 2.28557e+00 1721 2022 12 3.41199e+00 9.98915e-01 176 2023 1 2.84713e-01 6.91140e-01 87 2023 2 1.91854e-01 3.64242e-01 383 2023 3 1.10576e+00 7.45145e-01 1193 2023 4 5.60886e+00 2.29478e+00 1197 2023 5 1.38970e+01 2.62352e+00 3097 2023 6 1.90926e+01 1.15311e+00 3624 2023 7 2.30389e+01 9.00370e-01 3898 2023 8 2.19283e+01 9.00329e-01 3479 2023 9 2.03801e+01 9.61408e-01 3449 2023 10 1.62976e+01 3.93468e+00 1369 2023 11 7.83240e+00 1.05422e+00 1641 2023 12 3.92201e+00 7.28309e-01 318 2024 1 9.74778e-01 8.59036e-01 90 2024 2 9.53914e-01 1.32083e+00 677 2024 3 2.45229e+00 7.09769e-01 1292 2024 4 3.12085e+00 2.79143e-01 47