YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.76784e+01 1.71140e-01 121 2000 3 2.05914e+01 1.58763e+00 659 2000 4 2.23566e+01 8.22792e-01 640 2000 5 2.53224e+01 1.77236e+00 766 2000 6 2.78517e+01 6.85429e-01 353 2000 7 2.80336e+01 1.27926e+00 350 2000 8 2.97733e+01 2.71851e-01 192 2000 9 2.70320e+01 1.29563e+00 389 2000 10 2.31867e+01 1.56395e+00 1038 2000 11 2.19937e+01 2.35791e+00 482 2000 12 1.61576e+01 1.58586e+00 217 2001 1 1.21998e+01 9.30388e-02 64 2001 2 1.77991e+01 1.43762e+00 321 2001 3 1.68540e+01 1.67922e+00 560 2001 4 2.09898e+01 1.94871e+00 687 2001 5 2.52969e+01 9.77698e-01 768 2001 6 2.87961e+01 9.17593e-01 225 2001 7 2.85942e+01 1.06153e+00 216 2001 8 2.82669e+01 2.23435e+00 407 2001 9 2.68485e+01 1.46411e+00 502 2001 10 2.26937e+01 1.94573e+00 572 2001 11 1.96581e+01 7.80543e-01 860 2001 12 2.00324e+01 2.03170e+00 617 2002 1 1.31945e+01 3.70650e-01 160 2002 2 1.57883e+01 1.09373e+00 371 2002 3 1.94593e+01 2.05412e+00 92 2002 4 2.36388e+01 1.96210e+00 490 2002 5 2.63602e+01 1.53813e+00 863 2002 6 2.81203e+01 1.06076e+00 559 2002 7 2.93957e+01 1.04291e+00 1767 2002 8 2.90919e+01 8.51833e-01 2009 2002 9 2.87334e+01 1.08060e+00 1947 2002 10 2.70324e+01 1.90563e+00 2990 2002 11 2.07560e+01 2.71973e+00 2296 2002 12 1.48161e+01 1.00235e+00 1087 2003 1 1.22739e+01 1.37402e+00 1758 2003 2 1.46249e+01 2.00505e+00 1052 2003 3 2.06189e+01 1.94250e+00 1423 2003 4 2.16622e+01 1.82280e+00 2708 2003 5 2.68191e+01 1.53393e+00 2631 2003 6 2.84781e+01 1.24197e+00 1588 2003 7 2.93216e+01 1.43740e+00 1319 2003 8 2.85932e+01 1.19959e+00 2305 2003 9 2.80023e+01 1.43056e+00 1847 2003 10 2.45050e+01 1.08338e+00 2567 2003 11 2.17440e+01 1.72119e+00 2852 2003 12 1.52315e+01 1.66878e+00 1289 2004 1 1.37818e+01 9.95154e-01 1677 2004 2 1.37470e+01 1.17464e+00 822 2004 3 1.86314e+01 1.58903e+00 2585 2004 4 2.02442e+01 1.67484e+00 2404 2004 5 2.60302e+01 1.63268e+00 3498 2004 6 2.95233e+01 1.32173e+00 2367 2004 7 2.99852e+01 1.29302e+00 2422 2004 8 2.97339e+01 1.42667e+00 2321 2004 9 2.71137e+01 1.84648e+00 2084 2004 10 2.52204e+01 1.81911e+00 2492 2004 11 2.22528e+01 2.21897e+00 2141 2004 12 1.63941e+01 2.27000e+00 1599 2005 1 1.47368e+01 1.95220e+00 1213 2005 2 1.47249e+01 9.47078e-01 1226 2005 3 1.67897e+01 1.83181e+00 1670 2005 4 2.04614e+01 9.63672e-01 3163 2005 5 2.44715e+01 2.30854e+00 2992 2005 6 2.83087e+01 1.39510e+00 1922 2005 7 3.01955e+01 1.56726e+00 2380 2005 8 3.01826e+01 2.06449e+00 2015 2005 9 2.80380e+01 1.25304e+00 2525 2005 10 2.53669e+01 2.58065e+00 3022 2005 11 2.00394e+01 1.44079e+00 2088 2005 12 1.50407e+01 1.98565e+00 1526 2006 1 1.48833e+01 9.75335e-01 1683 2006 2 1.46402e+01 1.37204e+00 1533 2006 3 1.86599e+01 1.17575e+00 2733 2006 4 2.24700e+01 2.37830e+00 2668 2006 5 2.51128e+01 1.72250e+00 3386 2006 6 2.82019e+01 1.13183e+00 3158 2006 7 2.98458e+01 1.22172e+00 2748 2006 8 3.04208e+01 1.02686e+00 2538 2006 9 2.88244e+01 1.48654e+00 2821 2006 10 2.46286e+01 2.04706e+00 2775 2006 11 1.85009e+01 1.91625e+00 1834 2006 12 1.60525e+01 1.22196e+00 781 2007 1 1.48350e+01 1.24284e+00 1016 2007 2 1.38929e+01 8.18625e-01 1210 2007 3 1.88238e+01 1.47616e+00 3075 2007 4 2.08562e+01 1.48163e+00 2252 2007 5 2.43448e+01 1.00252e+00 3646 2007 6 2.77734e+01 1.76371e+00 2577 2007 7 2.99666e+01 1.57578e+00 1835 2007 8 3.03102e+01 1.35220e+00 2660 2007 9 2.88191e+01 1.42743e+00 2446 2007 10 2.63800e+01 9.44519e-01 1713 2007 11 1.96411e+01 1.56425e+00 2848 2007 12 1.81007e+01 1.35929e+00 1725 2008 1 1.40144e+01 1.94432e+00 864 2008 2 1.64186e+01 1.61327e+00 1427 2008 3 1.79249e+01 1.93129e+00 2400 2008 4 2.20731e+01 1.28519e+00 2721 2008 5 2.52103e+01 1.63314e+00 2789 2008 6 2.89952e+01 1.19073e+00 2595 2008 7 2.99463e+01 1.22420e+00 1710 2008 8 2.82780e+01 1.75813e+00 1485 2008 9 2.78630e+01 1.58636e+00 2875 2008 10 2.38623e+01 2.06172e+00 3117 2008 11 1.77239e+01 2.02066e+00 2330 2008 12 1.56210e+01 1.15080e+00 1168 2009 1 1.47996e+01 1.89716e+00 2038 2009 2 1.41423e+01 1.36405e+00 1792 2009 3 1.78800e+01 2.62121e+00 2188 2009 4 2.20241e+01 1.51695e+00 2497 2009 5 2.60299e+01 1.40813e+00 2420 2009 6 2.84298e+01 1.12044e+00 2506 2009 7 2.92497e+01 1.20461e+00 2060 2009 8 2.99760e+01 1.47596e+00 2157 2009 9 2.87895e+01 8.97768e-01 2364 2009 10 2.58413e+01 2.75391e+00 2912 2009 11 1.99320e+01 1.41934e+00 2024 2009 12 1.43021e+01 2.11473e+00 681 2010 1 1.13275e+01 2.35983e+00 1462 2010 2 1.23182e+01 9.68644e-01 1609 2010 3 1.50427e+01 1.85445e+00 2058 2010 4 2.11310e+01 1.50501e+00 2100 2010 5 2.65941e+01 1.88727e+00 3378 2010 6 3.00956e+01 1.53702e+00 2562 2010 7 2.97717e+01 1.52105e+00 2218 2010 8 3.01544e+01 1.50990e+00 1410 2010 9 2.92902e+01 1.29579e+00 2697 2010 10 2.47360e+01 1.01951e+00 3998 2010 11 2.01784e+01 1.25355e+00 2743 2010 12 1.43775e+01 2.90854e+00 2008 2011 1 1.15990e+01 8.89278e-01 1611 2011 2 1.44734e+01 1.85375e+00 787 2011 3 1.90822e+01 1.40539e+00 2117 2011 4 2.36122e+01 1.40046e+00 3739 2011 5 2.59812e+01 1.36849e+00 3872 2011 6 2.92888e+01 1.34008e+00 2550 2011 7 2.96823e+01 1.24166e+00 1853 2011 8 3.06084e+01 1.13450e+00 2791 2011 9 2.83787e+01 1.10471e+00 2704 2011 10 2.40628e+01 1.79267e+00 2717 2011 11 1.91018e+01 9.16243e-01 2315 2011 12 1.64965e+01 7.90404e-01 1477 2012 1 1.53866e+01 1.46611e+00 2122 2012 2 1.68802e+01 1.64817e+00 625 2012 3 2.13528e+01 2.08378e+00 2883 2012 4 2.35159e+01 9.66279e-01 3370 2012 5 2.66764e+01 1.15647e+00 3188 2012 6 2.73463e+01 1.27269e+00 2117 2012 7 2.95595e+01 1.81882e+00 2216 2012 8 2.92230e+01 1.24468e+00 1902 2012 9 2.81681e+01 1.25441e+00 2386 2012 10 2.46936e+01 2.43125e+00 2759 2012 11 1.87216e+01 1.05836e+00 2347 2012 12 1.71467e+01 1.81481e+00 2016 2013 1 1.59861e+01 1.27502e+00 925 2013 2 1.63455e+01 1.26137e+00 1766 2013 3 1.61364e+01 1.54017e+00 2766 2013 4 2.10022e+01 2.09063e+00 2296 2013 5 2.45670e+01 2.05209e+00 2970 2013 6 2.83765e+01 1.53642e+00 2416 2013 7 2.91332e+01 1.12164e+00 1204 2013 8 2.99205e+01 1.79541e+00 2656 2013 9 2.96049e+01 1.55589e+00 2967 2013 10 2.54565e+01 1.69102e+00 2866 2013 11 1.97019e+01 2.21196e+00 1609 2013 12 1.68076e+01 1.19839e+00 1102 2014 1 1.30764e+01 9.79273e-01 851 2014 2 1.52229e+01 2.23960e+00 1163 2014 3 1.75083e+01 1.40017e+00 2059 2014 4 2.13001e+01 1.90521e+00 1871 2014 5 2.52346e+01 1.48207e+00 2405 2014 6 2.87277e+01 1.50417e+00 2292 2014 7 3.04281e+01 1.17943e+00 1990 2014 8 2.98529e+01 1.36184e+00 2667 2014 9 2.85932e+01 1.42384e+00 1099 2014 10 2.54819e+01 1.79825e+00 3185 2014 11 1.77456e+01 2.20481e+00 2073 2014 12 1.62739e+01 9.57415e-01 1414 2015 1 1.50894e+01 1.02101e+00 1968 2015 2 1.36566e+01 1.19446e+00 1726 2015 3 1.94845e+01 2.02249e+00 1603 2015 4 2.34227e+01 1.78637e+00 1300 2015 5 2.66742e+01 1.83181e+00 4178 2015 6 2.98810e+01 1.52871e+00 2165 2015 7 2.95571e+01 1.29815e+00 1646 2015 8 2.99256e+01 1.54917e+00 2093 2015 9 2.78043e+01 1.84766e+00 1245 2015 10 2.40623e+01 1.32613e+00 2375 2015 11 2.27156e+01 2.60943e+00 2267 2015 12 1.88839e+01 1.04481e+00 1099 2016 1 1.54015e+01 1.92202e+00 1360 2016 2 1.41891e+01 1.45638e+00 1334 2016 3 1.83755e+01 1.83825e+00 1348 2016 4 2.20459e+01 1.75386e+00 2205 2016 5 2.61186e+01 1.34727e+00 3257 2016 6 2.94652e+01 1.06915e+00 2830 2016 7 3.10845e+01 1.21174e+00 2673 2016 8 3.03862e+01 9.57276e-01 2087 2016 9 2.91611e+01 1.41645e+00 2804 2016 10 2.55512e+01 1.63590e+00 3089 2016 11 2.07976e+01 2.26284e+00 2815 2016 12 1.81622e+01 1.62015e+00 1557 2017 1 1.61808e+01 1.27459e+00 1445 2017 2 1.80242e+01 1.75222e+00 1911 2017 3 1.90703e+01 1.76127e+00 2871 2017 4 2.32935e+01 1.13722e+00 3139 2017 5 2.51244e+01 1.32807e+00 2328 2017 6 2.86016e+01 1.51133e+00 1523 2017 7 3.05650e+01 1.22931e+00 1707 2017 8 3.04082e+01 1.33677e+00 1749 2017 9 2.80907e+01 1.52196e+00 2682 2017 10 2.55504e+01 2.25748e+00 3124 2017 11 2.02906e+01 1.29493e+00 2938 2017 12 1.74696e+01 2.12129e+00 1323 2018 1 1.15133e+01 1.50369e+00 1399 2018 2 1.86795e+01 2.86049e+00 1309 2018 3 1.83725e+01 1.83296e+00 2895 2018 4 2.14635e+01 1.32685e+00 2456 2018 5 2.50384e+01 1.41074e+00 2183 2018 6 2.91901e+01 1.62755e+00 2272 2018 7 2.98318e+01 1.69690e+00 1827 2018 8 3.00764e+01 1.21551e+00 1984 2018 9 3.04843e+01 9.71139e-01 2992 2018 10 2.72188e+01 2.12262e+00 3244 2018 11 2.01747e+01 2.12302e+00 1391 2018 12 1.58622e+01 2.06933e+00 1098 2019 1 1.54203e+01 1.73897e+00 1608 2019 2 1.78017e+01 2.48989e+00 921 2019 3 1.90282e+01 1.15240e+00 2202 2019 4 2.24036e+01 1.67570e+00 1973 2019 5 2.75183e+01 1.82516e+00 3231 2019 6 2.93485e+01 1.21679e+00 1928 2019 7 2.98988e+01 1.20422e+00 1397 2019 8 2.98710e+01 1.11579e+00 1846 2019 9 2.92260e+01 1.02533e+00 3514 2019 10 2.64931e+01 1.98428e+00 2490 2019 11 1.94623e+01 2.46142e+00 2053 2019 12 1.69866e+01 1.16787e+00 1744 2020 1 1.64161e+01 1.33095e+00 2287 2020 2 1.57634e+01 1.10971e+00 1751 2020 3 2.12782e+01 3.42221e+00 2344 2020 4 2.40546e+01 7.86751e-01 1770 2020 5 2.48808e+01 1.35267e+00 2974 2020 6 2.93861e+01 1.29884e+00 2099 2020 7 3.01009e+01 1.11293e+00 1962 2020 8 3.11918e+01 1.29366e+00 1374 2020 9 2.81875e+01 2.02925e+00 1400 2020 10 2.57161e+01 9.07167e-01 2457 2020 11 2.19565e+01 1.79513e+00 2531 2020 12 1.56513e+01 1.72055e+00 2784 2021 1 1.43340e+01 1.27605e+00 1812 2021 2 1.64727e+01 2.25393e+00 1679 2021 3 1.87436e+01 1.53951e+00 2330 2021 4 2.20364e+01 1.52643e+00 2562 2021 5 2.54906e+01 1.34923e+00 2791 2021 6 2.82378e+01 1.25810e+00 1332 2021 7 2.96029e+01 1.16316e+00 1789 2021 8 3.02753e+01 1.21633e+00 1672 2021 9 2.87253e+01 1.07028e+00 2013 2021 10 2.62750e+01 1.61155e+00 2108 2021 11 1.92947e+01 1.49190e+00 2762 2021 12 1.80827e+01 1.13966e+00 2548 2022 1 1.62179e+01 2.16116e+00 2573 2022 2 1.59502e+01 2.49682e+00 2330 2022 3 1.92937e+01 1.10760e+00 2673 2022 4 2.31244e+01 1.14384e+00 2184 2022 5 2.67130e+01 1.28520e+00 2939 2022 6 2.96807e+01 1.17660e+00 2688 2022 7 3.09507e+01 1.05729e+00 1914 2022 8 3.09433e+01 1.38340e+00 1819 2022 9 2.85647e+01 1.56904e+00 2048 2022 10 2.36305e+01 1.53837e+00 2934 2022 11 2.15861e+01 2.26463e+00 1631 2022 12 1.77900e+01 2.55546e+00 2915 2023 1 1.50376e+01 9.00395e-01 2369 2023 2 1.72093e+01 1.39727e+00 1899 2023 3 2.05558e+01 1.63211e+00 3072 2023 4 2.31444e+01 9.83117e-01 2033 2023 5 2.54685e+01 1.69624e+00 2642 2023 6 2.76265e+01 1.27935e+00 2139 2023 7 3.04535e+01 1.29334e+00 2918 2023 8 3.12102e+01 9.60799e-01 2980 2023 9 2.94381e+01 1.23166e+00 2257 2023 10 2.39564e+01 1.36999e+00 2570 2023 11 2.08641e+01 1.50204e+00 2143 2023 12 1.48528e+01 1.53016e+00 1446 2024 1 1.38722e+01 1.02240e+00 1273 2024 2 1.57118e+01 8.55306e-01 2015 2024 3 2.00231e+01 1.34982e+00 2009 2024 4 2.14113e+01 1.47082e+00 226