YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.39906e+01 4.50006e-01 142 2000 3 2.41590e+01 5.04108e-01 751 2000 4 2.51245e+01 8.65750e-01 705 2000 5 2.65810e+01 1.22144e+00 862 2000 6 2.80313e+01 6.51497e-01 510 2000 7 2.94960e+01 1.42871e+00 662 2000 8 2.93886e+01 9.73348e-01 264 2000 9 2.84849e+01 1.54595e+00 409 2000 10 2.79199e+01 1.04377e+00 925 2000 11 2.53713e+01 8.52680e-01 705 2000 12 2.40304e+01 1.14032e+00 479 2001 1 2.25698e+01 9.67932e-01 543 2001 2 2.35379e+01 8.83691e-01 648 2001 3 2.30479e+01 7.52193e-01 688 2001 4 2.48592e+01 1.18314e+00 759 2001 5 2.51985e+01 1.64576e+00 460 2001 6 2.85325e+01 2.76478e-01 132 2001 7 2.86738e+01 1.04649e+00 672 2001 8 3.00492e+01 7.26151e-01 326 2001 9 2.86759e+01 9.95682e-01 318 2001 10 2.76703e+01 7.25740e-01 574 2001 11 2.56593e+01 9.49078e-01 615 2001 12 2.49131e+01 5.08494e-01 769 2002 1 2.30938e+01 1.08219e+00 812 2002 2 2.35464e+01 9.47784e-01 260 2002 3 2.38816e+01 8.84646e-01 584 2002 4 2.67987e+01 7.02462e-01 768 2002 5 2.66885e+01 8.13646e-01 860 2002 6 2.70730e+01 1.84828e+00 298 2002 7 2.88577e+01 8.46569e-01 2303 2002 8 2.93860e+01 7.85606e-01 1819 2002 9 2.89043e+01 8.86021e-01 1361 2002 10 2.84245e+01 7.00316e-01 3514 2002 11 2.68694e+01 1.42045e+00 2358 2002 12 2.38870e+01 6.75843e-01 2346 2003 1 2.21427e+01 8.24230e-01 2106 2003 2 2.20308e+01 1.10328e+00 2796 2003 3 2.47383e+01 9.58245e-01 2286 2003 4 2.47929e+01 9.86980e-01 2626 2003 5 2.77360e+01 1.13622e+00 3129 2003 6 2.95327e+01 9.04966e-01 1654 2003 7 2.89211e+01 1.05924e+00 2001 2003 8 2.99368e+01 1.11971e+00 1554 2003 9 2.96774e+01 4.67909e-01 1747 2003 10 2.85243e+01 1.28660e+00 2461 2003 11 2.62999e+01 7.22367e-01 2401 2003 12 2.34044e+01 1.03868e+00 1545 2004 1 2.38053e+01 8.77171e-01 2731 2004 2 2.33043e+01 1.11000e+00 2204 2004 3 2.39852e+01 7.61736e-01 2832 2004 4 2.41611e+01 1.21132e+00 2758 2004 5 2.61399e+01 1.07771e+00 2737 2004 6 2.89783e+01 9.17611e-01 2511 2004 7 2.91735e+01 1.11834e+00 2049 2004 8 3.00802e+01 1.23368e+00 1928 2004 9 2.90426e+01 1.03219e+00 1924 2004 10 2.78024e+01 1.05594e+00 2739 2004 11 2.63539e+01 6.83394e-01 3274 2004 12 2.41363e+01 1.16677e+00 2498 2005 1 2.30761e+01 6.75449e-01 3293 2005 2 2.28454e+01 6.89569e-01 2437 2005 3 2.30318e+01 1.35891e+00 2199 2005 4 2.44696e+01 7.10683e-01 2739 2005 5 2.61392e+01 1.56706e+00 3245 2005 6 2.80834e+01 8.04254e-01 1796 2005 7 2.92178e+01 1.10511e+00 2360 2005 8 3.03974e+01 8.75298e-01 2348 2005 9 2.94190e+01 1.26421e+00 2625 2005 10 2.75902e+01 9.15286e-01 1555 2005 11 2.52469e+01 9.25852e-01 2540 2005 12 2.33292e+01 9.82319e-01 2740 2006 1 2.24467e+01 9.97410e-01 2569 2006 2 2.23854e+01 7.73461e-01 2833 2006 3 2.40564e+01 1.10379e+00 3007 2006 4 2.55414e+01 1.20018e+00 3668 2006 5 2.69977e+01 9.04495e-01 2537 2006 6 2.88766e+01 9.89895e-01 2387 2006 7 2.86985e+01 1.65495e+00 1512 2006 8 2.97603e+01 8.15477e-01 2086 2006 9 3.03078e+01 8.75214e-01 1957 2006 10 2.84327e+01 8.22669e-01 2375 2006 11 2.56266e+01 8.69727e-01 2028 2006 12 2.47029e+01 8.12129e-01 1254 2007 1 2.45663e+01 7.84596e-01 2253 2007 2 2.23809e+01 1.03182e+00 1255 2007 3 2.40957e+01 6.82718e-01 2967 2007 4 2.46176e+01 1.03349e+00 2967 2007 5 2.67572e+01 7.49354e-01 2994 2007 6 2.81116e+01 1.40480e+00 2273 2007 7 2.99982e+01 9.34578e-01 2752 2007 8 3.00442e+01 7.33825e-01 2702 2007 9 2.98011e+01 8.78874e-01 1718 2007 10 2.83306e+01 9.74222e-01 1631 2007 11 2.62481e+01 8.48281e-01 2641 2007 12 2.47556e+01 7.67230e-01 3195 2008 1 2.36247e+01 9.48938e-01 2066 2008 2 2.40695e+01 8.44907e-01 3086 2008 3 2.36735e+01 8.46507e-01 2527 2008 4 2.52420e+01 5.89372e-01 3313 2008 5 2.70828e+01 1.04260e+00 3618 2008 6 2.82896e+01 7.75717e-01 2442 2008 7 2.90113e+01 9.54507e-01 2203 2008 8 2.97442e+01 8.54118e-01 2452 2008 9 2.86649e+01 7.89841e-01 1703 2008 10 2.78376e+01 8.90833e-01 1854 2008 11 2.49955e+01 7.93938e-01 2757 2008 12 2.36737e+01 7.68122e-01 2992 2009 1 2.25650e+01 1.16343e+00 2448 2009 2 2.17378e+01 8.93517e-01 2778 2009 3 2.33994e+01 1.07216e+00 2377 2009 4 2.48496e+01 7.47093e-01 3059 2009 5 2.67296e+01 1.26528e+00 3272 2009 6 2.91808e+01 1.15077e+00 1987 2009 7 2.94051e+01 1.23820e+00 2509 2009 8 2.99067e+01 8.04647e-01 3105 2009 9 3.03034e+01 1.25521e+00 1937 2009 10 2.92936e+01 1.22935e+00 3117 2009 11 2.69521e+01 9.50926e-01 1606 2009 12 2.51222e+01 1.25316e+00 2262 2010 1 2.29459e+01 1.16545e+00 1840 2010 2 2.21375e+01 9.74705e-01 1125 2010 3 2.16542e+01 1.13470e+00 2163 2010 4 2.40205e+01 1.30844e+00 2155 2010 5 2.73542e+01 1.39896e+00 3280 2010 6 2.98207e+01 1.04164e+00 2719 2010 7 2.91714e+01 1.40727e+00 1818 2010 8 2.99363e+01 1.30491e+00 2018 2010 9 2.95806e+01 1.32378e+00 1886 2010 10 2.75418e+01 9.32918e-01 2716 2010 11 2.59400e+01 7.65331e-01 2476 2010 12 2.32213e+01 1.29394e+00 2919 2011 1 2.15346e+01 7.18053e-01 2590 2011 2 2.15299e+01 1.05522e+00 2889 2011 3 2.35375e+01 7.84608e-01 3056 2011 4 2.59987e+01 1.10768e+00 3970 2011 5 2.76362e+01 9.86902e-01 3451 2011 6 2.87374e+01 1.14667e+00 2283 2011 7 3.00517e+01 1.43152e+00 2267 2011 8 3.06605e+01 1.00542e+00 1877 2011 9 2.99996e+01 1.12668e+00 2526 2011 10 2.82206e+01 1.71184e+00 1118 2011 11 2.54266e+01 5.35692e-01 3472 2011 12 2.44030e+01 7.11687e-01 2621 2012 1 2.33003e+01 9.00407e-01 2670 2012 2 2.37520e+01 6.44763e-01 2040 2012 3 2.47535e+01 6.76136e-01 3250 2012 4 2.57005e+01 9.97002e-01 2434 2012 5 2.70703e+01 1.48208e+00 2300 2012 6 2.88396e+01 8.86269e-01 1734 2012 7 2.88537e+01 9.34868e-01 2402 2012 8 3.01006e+01 1.14005e+00 2122 2012 9 2.95962e+01 1.26999e+00 1868 2012 10 2.76219e+01 9.17097e-01 2228 2012 11 2.63154e+01 7.15600e-01 2892 2012 12 2.50227e+01 7.99592e-01 2492 2013 1 2.38639e+01 6.98159e-01 2017 2013 2 2.39524e+01 6.69274e-01 2399 2013 3 2.30760e+01 9.09015e-01 2958 2013 4 2.55696e+01 1.46348e+00 2530 2013 5 2.64819e+01 9.89828e-01 2597 2013 6 2.81994e+01 9.73735e-01 2282 2013 7 2.92370e+01 1.14342e+00 1883 2013 8 2.97242e+01 1.00338e+00 1719 2013 9 2.92243e+01 1.00110e+00 1775 2013 10 2.84654e+01 8.19812e-01 2836 2013 11 2.70172e+01 7.34198e-01 2341 2013 12 2.55406e+01 9.54684e-01 2356 2014 1 2.36741e+01 1.08750e+00 1836 2014 2 2.44849e+01 8.06173e-01 3017 2014 3 2.45148e+01 6.90016e-01 2866 2014 4 2.55029e+01 9.40520e-01 2645 2014 5 2.67361e+01 9.54104e-01 2279 2014 6 2.85740e+01 1.37460e+00 1936 2014 7 3.00008e+01 1.21974e+00 2765 2014 8 3.07774e+01 9.30263e-01 2685 2014 9 2.98729e+01 1.16099e+00 1531 2014 10 2.85080e+01 1.26498e+00 2446 2014 11 2.58213e+01 9.80416e-01 2618 2014 12 2.47192e+01 6.95508e-01 2435 2015 1 2.37435e+01 1.23596e+00 2060 2015 2 2.28211e+01 6.31143e-01 2387 2015 3 2.48717e+01 1.17081e+00 3364 2015 4 2.60924e+01 1.27543e+00 2947 2015 5 2.73875e+01 1.16128e+00 3022 2015 6 2.89942e+01 1.32766e+00 2191 2015 7 2.97663e+01 1.14653e+00 2411 2015 8 3.06568e+01 1.00197e+00 2360 2015 9 3.06847e+01 1.07432e+00 1711 2015 10 2.83655e+01 1.10254e+00 2405 2015 11 2.74035e+01 9.02133e-01 2856 2015 12 2.56355e+01 9.25394e-01 1884 2016 1 2.49184e+01 1.18874e+00 797 2016 2 2.36729e+01 9.61419e-01 1813 2016 3 2.43728e+01 1.42832e+00 1982 2016 4 2.59511e+01 6.98657e-01 3150 2016 5 2.78510e+01 1.09265e+00 3273 2016 6 2.93655e+01 1.02080e+00 2067 2016 7 3.01188e+01 1.02997e+00 2890 2016 8 3.00556e+01 9.48542e-01 1895 2016 9 2.97146e+01 8.02515e-01 2728 2016 10 2.89557e+01 7.08830e-01 2146 2016 11 2.67434e+01 7.64046e-01 2937 2016 12 2.56146e+01 5.95452e-01 2590 2017 1 2.43989e+01 7.60472e-01 2966 2017 2 2.38228e+01 8.56262e-01 3348 2017 3 2.43525e+01 1.04899e+00 3280 2017 4 2.54272e+01 8.25315e-01 2496 2017 5 2.69062e+01 1.19417e+00 3339 2017 6 2.85489e+01 1.21220e+00 1887 2017 7 2.94466e+01 9.42780e-01 2183 2017 8 3.02671e+01 8.89909e-01 2273 2017 9 2.99664e+01 7.24393e-01 2218 2017 10 2.84191e+01 1.07134e+00 1477 2017 11 2.58914e+01 6.58520e-01 3631 2017 12 2.49359e+01 8.98079e-01 4074 2018 1 2.25519e+01 1.63364e+00 1278 2018 2 2.41206e+01 9.59232e-01 2953 2018 3 2.47796e+01 8.44108e-01 3120 2018 4 2.58315e+01 1.03481e+00 3033 2018 5 2.60160e+01 7.89862e-01 1159 2018 6 2.84755e+01 1.89857e+00 1759 2018 7 3.00671e+01 1.23345e+00 2068 2018 8 2.99043e+01 9.19694e-01 2146 2018 9 2.95726e+01 8.80885e-01 2584 2018 10 2.82075e+01 6.80848e-01 3077 2018 11 2.69019e+01 9.31906e-01 2182 2018 12 2.52848e+01 1.24871e+00 2506 2019 1 2.34767e+01 1.36772e+00 2494 2019 2 2.49944e+01 1.08119e+00 3204 2019 3 2.55189e+01 9.11443e-01 3384 2019 4 2.62964e+01 8.41644e-01 2943 2019 5 2.78398e+01 8.96966e-01 3463 2019 6 2.94504e+01 1.47243e+00 2885 2019 7 2.99351e+01 9.85210e-01 2616 2019 8 3.05314e+01 1.21985e+00 2283 2019 9 2.93383e+01 8.02494e-01 2284 2019 10 2.85405e+01 7.75308e-01 2326 2019 11 2.72039e+01 9.59235e-01 2836 2019 12 2.51794e+01 7.37847e-01 2394 2020 1 2.44202e+01 8.07384e-01 2598 2020 2 2.44320e+01 1.00204e+00 2379 2020 3 2.53066e+01 7.14488e-01 3763 2020 4 2.66645e+01 8.40486e-01 3155 2020 5 2.70522e+01 1.08246e+00 2273 2020 6 2.91616e+01 8.61949e-01 1898 2020 7 3.03527e+01 1.17867e+00 2039 2020 8 3.03974e+01 1.08048e+00 2715 2020 9 2.97811e+01 9.19109e-01 2532 2020 10 2.85341e+01 9.72084e-01 1756 2020 11 2.67275e+01 7.36756e-01 1861 2020 12 2.47570e+01 9.48457e-01 2734 2021 1 2.26311e+01 9.03735e-01 2323 2021 2 2.33239e+01 1.23151e+00 2801 2021 3 2.45457e+01 7.52568e-01 3406 2021 4 2.54695e+01 8.21536e-01 3012 2021 5 2.71431e+01 1.27036e+00 2889 2021 6 2.78850e+01 1.00958e+00 1537 2021 7 2.94639e+01 1.27223e+00 2875 2021 8 2.99467e+01 1.32799e+00 1971 2021 9 3.01914e+01 9.89756e-01 3014 2021 10 2.89906e+01 8.30724e-01 2137 2021 11 2.59457e+01 8.79242e-01 2004 2021 12 2.55051e+01 6.44810e-01 3500 2022 1 2.43790e+01 8.60870e-01 2241 2022 2 2.40987e+01 7.40136e-01 2890 2022 3 2.55995e+01 7.02739e-01 3234 2022 4 2.56952e+01 6.53376e-01 1767 2022 5 2.74577e+01 9.41465e-01 2767 2022 6 2.92289e+01 1.44360e+00 1879 2022 7 3.03056e+01 7.43244e-01 2547 2022 8 3.02158e+01 8.79488e-01 2805 2022 9 3.07497e+01 7.95424e-01 2419 2022 10 2.81661e+01 8.63154e-01 2488 2022 11 2.71765e+01 5.73353e-01 2495 2022 12 2.60346e+01 8.46442e-01 2936 2023 1 2.48793e+01 7.73759e-01 3357 2023 2 2.50288e+01 7.71451e-01 2975 2023 3 2.56528e+01 7.77484e-01 3258 2023 4 2.70442e+01 7.21518e-01 2803 2023 5 2.81553e+01 1.04559e+00 3224 2023 6 2.95488e+01 9.35166e-01 2713 2023 7 3.09180e+01 9.75989e-01 2218 2023 8 3.10745e+01 1.01760e+00 2170 2023 9 3.07124e+01 1.03669e+00 2597 2023 10 2.90229e+01 1.22279e+00 2697 2023 11 2.73465e+01 7.71030e-01 2082 2023 12 2.56129e+01 1.28764e+00 1582 2024 1 2.44746e+01 7.83042e-01 1664 2024 2 2.29042e+01 7.00890e-01 2353 2024 3 2.47199e+01 8.15566e-01 2297 2024 4 2.44097e+01 5.67213e-01 284