YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.09819e+01 8.76969e-01 157 2000 3 2.41147e+01 7.32211e-01 595 2000 4 2.47782e+01 1.04926e+00 693 2000 5 2.80075e+01 1.40446e+00 417 2000 6 2.85916e+01 1.40065e+00 448 2000 7 2.94942e+01 1.49900e+00 469 2000 8 2.91311e+01 2.12725e+00 342 2000 9 2.91553e+01 1.07291e+00 310 2000 10 2.64058e+01 2.36730e+00 695 2000 11 2.37717e+01 1.16688e+00 686 2000 12 2.05309e+01 1.37782e+00 459 2001 1 1.76440e+01 1.84621e-01 65 2001 2 2.18782e+01 1.69694e+00 586 2001 3 2.20369e+01 8.55584e-01 262 2001 4 2.55541e+01 1.20971e+00 517 2001 5 2.57725e+01 1.54975e+00 512 2001 6 3.00682e+01 3.95824e-01 256 2001 7 2.84323e+01 8.86400e-01 304 2001 8 2.97096e+01 1.08013e+00 255 2001 9 2.91694e+01 7.65122e-01 318 2001 10 2.70333e+01 1.71254e-01 256 2001 11 2.32493e+01 5.39617e-01 534 2001 12 2.31811e+01 1.33623e+00 716 2002 1 2.08431e+01 2.53248e+00 576 2002 2 2.24797e+01 1.39114e+00 196 2002 3 2.33439e+01 1.64410e+00 425 2002 4 2.70831e+01 8.09450e-01 620 2002 5 2.78122e+01 7.31911e-01 586 2002 6 2.80550e+01 1.71835e+00 216 2002 7 2.99061e+01 1.43991e+00 1761 2002 8 2.96696e+01 8.58266e-01 1350 2002 9 2.89601e+01 8.05699e-01 1166 2002 10 2.85511e+01 9.68170e-01 3349 2002 11 2.46597e+01 3.00768e+00 2580 2002 12 2.03932e+01 1.34821e+00 1946 2003 1 1.70954e+01 1.41932e+00 2285 2003 2 2.02991e+01 2.02185e+00 2234 2003 3 2.62687e+01 1.03148e+00 1865 2003 4 2.44537e+01 1.40237e+00 2305 2003 5 2.84665e+01 1.30681e+00 3040 2003 6 2.97180e+01 9.82980e-01 1179 2003 7 2.96747e+01 1.32347e+00 1628 2003 8 2.99240e+01 9.81644e-01 1452 2003 9 2.96566e+01 8.59054e-01 1509 2003 10 2.80238e+01 1.36099e+00 2870 2003 11 2.44188e+01 1.20075e+00 2931 2003 12 1.93821e+01 1.35643e+00 1982 2004 1 1.89883e+01 8.05242e-01 3030 2004 2 2.01640e+01 1.10807e+00 2064 2004 3 2.24231e+01 1.01435e+00 2363 2004 4 2.33626e+01 1.34788e+00 2885 2004 5 2.69252e+01 1.35325e+00 2947 2004 6 2.99323e+01 8.35503e-01 2130 2004 7 3.00124e+01 9.12758e-01 2005 2004 8 3.03544e+01 1.38875e+00 1540 2004 9 2.90385e+01 1.18939e+00 1783 2004 10 2.73456e+01 1.07335e+00 2562 2004 11 2.40831e+01 1.14320e+00 3105 2004 12 2.10610e+01 2.27146e+00 2030 2005 1 1.90139e+01 1.32540e+00 2656 2005 2 1.93386e+01 1.07374e+00 2494 2005 3 2.21474e+01 2.22639e+00 2067 2005 4 2.37817e+01 8.97704e-01 2766 2005 5 2.66484e+01 1.65004e+00 2589 2005 6 2.90448e+01 9.26573e-01 1308 2005 7 3.00648e+01 1.28871e+00 1947 2005 8 3.05450e+01 1.16539e+00 1638 2005 9 2.99319e+01 1.27644e+00 2096 2005 10 2.65886e+01 2.74193e+00 1655 2005 11 2.36503e+01 1.11171e+00 2659 2005 12 2.10429e+01 1.23338e+00 2540 2006 1 1.96746e+01 1.09881e+00 2033 2006 2 1.99915e+01 1.46514e+00 2356 2006 3 2.28243e+01 1.19619e+00 3202 2006 4 2.51994e+01 1.93529e+00 3121 2006 5 2.75250e+01 1.17300e+00 2579 2006 6 2.97993e+01 9.05871e-01 1978 2006 7 2.89453e+01 9.04853e-01 1270 2006 8 3.00567e+01 8.02852e-01 1903 2006 9 2.98252e+01 1.11576e+00 2496 2006 10 2.76540e+01 1.67877e+00 3046 2006 11 2.20124e+01 2.10470e+00 2080 2006 12 2.17756e+01 8.28382e-01 1541 2007 1 2.21656e+01 1.09378e+00 2888 2007 2 1.94199e+01 1.16813e+00 1757 2007 3 2.21208e+01 8.48803e-01 2563 2007 4 2.39764e+01 1.01677e+00 2864 2007 5 2.63815e+01 8.62729e-01 2812 2007 6 2.89137e+01 1.67332e+00 2363 2007 7 3.13273e+01 6.42060e-01 1805 2007 8 3.08878e+01 1.03086e+00 2766 2007 9 2.96549e+01 1.32537e+00 2057 2007 10 2.78264e+01 1.17126e+00 1811 2007 11 2.32438e+01 1.15566e+00 3241 2007 12 2.30489e+01 1.28294e+00 3059 2008 1 1.97434e+01 1.08344e+00 2121 2008 2 2.24209e+01 1.33795e+00 2329 2008 3 2.24041e+01 1.20219e+00 2289 2008 4 2.47856e+01 1.08357e+00 3247 2008 5 2.76680e+01 1.51189e+00 3471 2008 6 2.94553e+01 7.06720e-01 2479 2008 7 2.94680e+01 1.04824e+00 1754 2008 8 3.02245e+01 1.15026e+00 2211 2008 9 2.91603e+01 9.81263e-01 2230 2008 10 2.72809e+01 2.03518e+00 1957 2008 11 2.12687e+01 1.71096e+00 2949 2008 12 2.05991e+01 1.02648e+00 2985 2009 1 1.99363e+01 2.15623e+00 2973 2009 2 1.89309e+01 1.51328e+00 2781 2009 3 2.11685e+01 1.75478e+00 2610 2009 4 2.48265e+01 7.57741e-01 2720 2009 5 2.74149e+01 1.39970e+00 3377 2009 6 3.02958e+01 1.40488e+00 1724 2009 7 3.03662e+01 8.51282e-01 2103 2009 8 3.02231e+01 9.31119e-01 2652 2009 9 3.03898e+01 7.38206e-01 1512 2009 10 2.87843e+01 2.27848e+00 2737 2009 11 2.42519e+01 2.08868e+00 1817 2009 12 2.19571e+01 1.94441e+00 2015 2010 1 1.67814e+01 2.33358e+00 1404 2010 2 1.82380e+01 1.53550e+00 1321 2010 3 1.85973e+01 1.75622e+00 1877 2010 4 2.34312e+01 1.56964e+00 2353 2010 5 2.82584e+01 1.20373e+00 3361 2010 6 3.10637e+01 8.84336e-01 2657 2010 7 2.98413e+01 1.10206e+00 1740 2010 8 3.07389e+01 1.00245e+00 1595 2010 9 2.95198e+01 1.14712e+00 2033 2010 10 2.63868e+01 1.13737e+00 2807 2010 11 2.32372e+01 1.79851e+00 2699 2010 12 1.77473e+01 2.37561e+00 2620 2011 1 1.74615e+01 8.92593e-01 2370 2011 2 2.03185e+01 1.69521e+00 2725 2011 3 2.30846e+01 1.29832e+00 3673 2011 4 2.68913e+01 8.78841e-01 3481 2011 5 2.81833e+01 7.48444e-01 3040 2011 6 2.91338e+01 1.36373e+00 1812 2011 7 3.05196e+01 1.19405e+00 1696 2011 8 3.01934e+01 9.96432e-01 1802 2011 9 3.00407e+01 9.94563e-01 2594 2011 10 2.66366e+01 1.96397e+00 1222 2011 11 2.37047e+01 8.02078e-01 3071 2011 12 2.19847e+01 7.41483e-01 3062 2012 1 1.95966e+01 1.14960e+00 2534 2012 2 2.19238e+01 1.56317e+00 2234 2012 3 2.39273e+01 9.19281e-01 3347 2012 4 2.52138e+01 1.23953e+00 2391 2012 5 2.77190e+01 1.61632e+00 2435 2012 6 2.95359e+01 1.14954e+00 1407 2012 7 2.93676e+01 1.11035e+00 2165 2012 8 3.05485e+01 1.34217e+00 1638 2012 9 2.92692e+01 1.47458e+00 1466 2012 10 2.71855e+01 1.96822e+00 2313 2012 11 2.17466e+01 1.35194e+00 2941 2012 12 2.18365e+01 1.37472e+00 2168 2013 1 2.16631e+01 9.37179e-01 2177 2013 2 2.12491e+01 1.16179e+00 2452 2013 3 2.06311e+01 1.09262e+00 2651 2013 4 2.54747e+01 2.07240e+00 2732 2013 5 2.71825e+01 1.11210e+00 2904 2013 6 2.94712e+01 1.04745e+00 1590 2013 7 2.89764e+01 1.13534e+00 1417 2013 8 3.02304e+01 9.35302e-01 1679 2013 9 2.94199e+01 7.59250e-01 1563 2013 10 2.80546e+01 1.33441e+00 2897 2013 11 2.45068e+01 1.29258e+00 2192 2013 12 2.30431e+01 8.34473e-01 2293 2014 1 1.97949e+01 2.02591e+00 1777 2014 2 2.25238e+01 1.44042e+00 2915 2014 3 2.39781e+01 6.09024e-01 3123 2014 4 2.53932e+01 1.41271e+00 2514 2014 5 2.69219e+01 9.33247e-01 2541 2014 6 2.96992e+01 1.45392e+00 1953 2014 7 3.08148e+01 1.06668e+00 2017 2014 8 3.14168e+01 7.40148e-01 2262 2014 9 2.88578e+01 1.33176e+00 1495 2014 10 2.77376e+01 1.86575e+00 2133 2014 11 2.26563e+01 1.64022e+00 2500 2014 12 2.04699e+01 1.33182e+00 2408 2015 1 2.14447e+01 1.70744e+00 2183 2015 2 1.90507e+01 7.70572e-01 2293 2015 3 2.47698e+01 1.92049e+00 3360 2015 4 2.69540e+01 1.94290e+00 2836 2015 5 2.77531e+01 1.34591e+00 2960 2015 6 2.97460e+01 1.21463e+00 1898 2015 7 3.04572e+01 8.68638e-01 1495 2015 8 3.11913e+01 1.03175e+00 1922 2015 9 3.03577e+01 1.19711e+00 1374 2015 10 2.77394e+01 1.48637e+00 2274 2015 11 2.67064e+01 1.82244e+00 2738 2015 12 2.42138e+01 8.10583e-01 1673 2016 1 2.05883e+01 2.83231e+00 874 2016 2 1.92509e+01 1.35644e+00 2038 2016 3 2.30385e+01 2.21530e+00 1035 2016 4 2.55768e+01 9.75199e-01 3098 2016 5 2.79076e+01 1.73753e+00 2713 2016 6 3.00259e+01 9.42989e-01 1918 2016 7 3.09588e+01 9.18768e-01 1827 2016 8 3.06816e+01 9.69207e-01 1388 2016 9 3.05898e+01 1.54271e+00 2043 2016 10 2.75497e+01 1.64408e+00 2007 2016 11 2.36856e+01 1.37078e+00 3277 2016 12 2.40534e+01 7.05675e-01 2875 2017 1 2.13675e+01 1.17266e+00 2785 2017 2 2.22559e+01 1.11012e+00 3138 2017 3 2.27090e+01 1.29224e+00 3476 2017 4 2.51233e+01 1.34230e+00 1855 2017 5 2.76781e+01 1.14558e+00 2798 2017 6 2.93710e+01 1.02742e+00 851 2017 7 3.03750e+01 7.00999e-01 1443 2017 8 3.07800e+01 1.28692e+00 1959 2017 9 2.98717e+01 1.03729e+00 2053 2017 10 2.75551e+01 1.97289e+00 1931 2017 11 2.43766e+01 9.63028e-01 3213 2017 12 2.26184e+01 1.63111e+00 3666 2018 1 1.86000e+01 1.45214e+00 1608 2018 2 2.28165e+01 1.98987e+00 2721 2018 3 2.23442e+01 1.60127e+00 3342 2018 4 2.60877e+01 1.15744e+00 3195 2018 5 2.65632e+01 1.22953e+00 1012 2018 6 2.94436e+01 1.26493e+00 1448 2018 7 3.05591e+01 1.05733e+00 1536 2018 8 3.04615e+01 7.93114e-01 1852 2018 9 3.02099e+01 1.00836e+00 2134 2018 10 2.84240e+01 1.07961e+00 2590 2018 11 2.61487e+01 1.31830e+00 1973 2018 12 2.12043e+01 1.25456e+00 2323 2019 1 2.08154e+01 1.49328e+00 2251 2019 2 2.29837e+01 2.29892e+00 2921 2019 3 2.46562e+01 1.41481e+00 3211 2019 4 2.60423e+01 1.18224e+00 2979 2019 5 2.87259e+01 9.50851e-01 3130 2019 6 3.10258e+01 1.10649e+00 2294 2019 7 3.03177e+01 1.04508e+00 1485 2019 8 3.06660e+01 9.49696e-01 1271 2019 9 2.92288e+01 1.35526e+00 2685 2019 10 2.82516e+01 7.68934e-01 2494 2019 11 2.51046e+01 2.58859e+00 2691 2019 12 2.24761e+01 7.52152e-01 2556 2020 1 2.14586e+01 1.40944e+00 3052 2020 2 2.18919e+01 1.65294e+00 2634 2020 3 2.39932e+01 2.03899e+00 3280 2020 4 2.76857e+01 9.67512e-01 2611 2020 5 2.72394e+01 1.37390e+00 2181 2020 6 3.00475e+01 1.44691e+00 1634 2020 7 3.07816e+01 1.50448e+00 1521 2020 8 3.10551e+01 1.31418e+00 2268 2020 9 3.01035e+01 1.02291e+00 2356 2020 10 2.82429e+01 1.61551e+00 1896 2020 11 2.52753e+01 1.25567e+00 2510 2020 12 2.09731e+01 1.25843e+00 3006 2021 1 2.03754e+01 1.04335e+00 2253 2021 2 2.26728e+01 2.00423e+00 2886 2021 3 2.36400e+01 1.32636e+00 3052 2021 4 2.54462e+01 1.59832e+00 2960 2021 5 2.79336e+01 1.38643e+00 2610 2021 6 2.85112e+01 9.22807e-01 1172 2021 7 2.98673e+01 1.14106e+00 2445 2021 8 3.02920e+01 7.85907e-01 1585 2021 9 3.02596e+01 8.70794e-01 2430 2021 10 2.86604e+01 1.02886e+00 2393 2021 11 2.31302e+01 1.48621e+00 1884 2021 12 2.29069e+01 1.10223e+00 3504 2022 1 2.15427e+01 1.97390e+00 2031 2022 2 2.08749e+01 1.94827e+00 2268 2022 3 2.45537e+01 1.21840e+00 3519 2022 4 2.56348e+01 1.00997e+00 1607 2022 5 2.85711e+01 9.10863e-01 2997 2022 6 2.93489e+01 1.19143e+00 1956 2022 7 3.00873e+01 8.79772e-01 2238 2022 8 3.03883e+01 9.61259e-01 2220 2022 9 3.06443e+01 1.27060e+00 1888 2022 10 2.65100e+01 1.32637e+00 2399 2022 11 2.61699e+01 1.09132e+00 2853 2022 12 2.38288e+01 2.03107e+00 2923 2023 1 2.03950e+01 1.09089e+00 3440 2023 2 2.34678e+01 1.25151e+00 3437 2023 3 2.51884e+01 1.26203e+00 3370 2023 4 2.72090e+01 9.58882e-01 2106 2023 5 2.87985e+01 1.35081e+00 3417 2023 6 3.05184e+01 1.03691e+00 2419 2023 7 3.17886e+01 1.09883e+00 2194 2023 8 3.13639e+01 1.28248e+00 2247 2023 9 3.11875e+01 1.02911e+00 2601 2023 10 2.74246e+01 2.02932e+00 3019 2023 11 2.49539e+01 8.98881e-01 2527 2023 12 2.12548e+01 1.69262e+00 1629 2024 1 2.02473e+01 1.13892e+00 1018 2024 2 2.03753e+01 9.97259e-01 2593 2024 3 2.51538e+01 7.98922e-01 2007 2024 4 2.46863e+01 5.11055e-01 207