YEAR MONTH MEAN STDEV COUNT 2002 1 nan nan 0 2002 2 nan nan 0 2002 3 nan nan 0 2002 4 nan nan 0 2002 5 nan nan 0 2002 6 nan nan 0 2002 7 6.11875e+01 4.44131e-01 183 2002 8 5.83924e+01 2.20036e-01 132 2002 9 5.14348e+01 1.92636e+00 165 2002 10 4.43993e+01 1.71379e+00 884 2002 11 3.85767e+01 1.99348e+00 655 2002 12 3.34238e+01 7.15404e-01 490 2003 1 3.57037e+01 1.42408e+00 688 2003 2 4.28169e+01 2.46514e+00 832 2003 3 5.08449e+01 2.58243e+00 515 2003 4 5.86323e+01 6.08910e-01 120 2003 5 6.14453e+01 4.44576e-01 442 2003 6 6.22195e+01 1.37408e-01 97 2003 7 6.07008e+01 1.39868e-01 41 2003 8 5.81609e+01 3.87361e-01 176 2003 9 5.22314e+01 1.33085e+00 151 2003 10 4.55872e+01 2.52482e+00 1024 2003 11 3.76131e+01 1.87674e+00 904 2003 12 3.33902e+01 7.75061e-01 499 2004 1 3.59357e+01 1.33396e+00 954 2004 2 4.18925e+01 2.37171e+00 739 2004 3 5.15512e+01 2.79600e+00 560 2004 4 5.86744e+01 1.53968e+00 442 2004 5 6.17216e+01 5.51872e-01 236 2004 6 6.20467e+01 5.94260e-01 192 2004 7 6.06949e+01 6.79815e-01 192 2004 8 5.77290e+01 1.09737e+00 411 2004 9 4.97369e+01 1.99629e-01 59 2004 10 4.54342e+01 2.03267e+00 669 2004 11 3.79981e+01 1.70120e+00 888 2004 12 3.38014e+01 7.25550e-01 478 2005 1 3.57273e+01 1.33665e+00 352 2005 2 4.26688e+01 2.17676e+00 729 2005 3 5.20889e+01 2.24158e+00 480 2005 4 5.78652e+01 1.54234e+00 279 2005 5 6.06620e+01 1.35641e+00 192 2005 6 6.23084e+01 1.33742e-01 64 2005 7 6.13462e+01 8.23950e-01 178 2005 8 5.98900e+01 6.06827e-01 176 2005 9 5.29791e+01 1.30980e+00 253 2005 10 4.61811e+01 8.83979e-01 249 2005 11 3.81763e+01 1.84913e+00 610 2005 12 3.34643e+01 5.60332e-01 1024 2006 1 3.43767e+01 5.73421e-01 353 2006 2 4.41361e+01 1.61300e+00 330 2006 3 5.18606e+01 1.96313e+00 79 2006 4 5.73074e+01 1.79446e+00 257 2006 5 6.13562e+01 8.49822e-01 596 2006 6 6.24619e+01 3.04289e-01 372 2006 7 6.12406e+01 1.25118e-01 64 2006 8 5.90089e+01 1.12628e+00 186 2006 9 5.24825e+01 1.58328e+00 447 2006 10 4.49525e+01 2.43608e+00 825 2006 11 3.74227e+01 1.64201e+00 692 2006 12 3.37033e+01 2.58370e-01 347 2007 1 3.62698e+01 1.53877e+00 653 2007 2 4.42850e+01 2.35824e+00 566 2007 3 5.15870e+01 2.29774e+00 553 2007 4 5.74948e+01 1.68493e+00 212 2007 5 6.04469e+01 9.30743e-01 277 2007 6 6.25759e+01 4.93612e-01 461 2007 7 6.17282e+01 7.19947e-01 479 2007 8 5.87673e+01 1.12374e+00 489 2007 9 5.46214e+01 2.18610e+00 397 2007 10 4.54802e+01 1.76000e+00 529 2007 11 3.79275e+01 1.63527e+00 1158 2007 12 3.38262e+01 5.27796e-01 931 2008 1 3.68240e+01 1.54044e+00 531 2008 2 4.08283e+01 1.30487e+00 492 2008 3 5.04107e+01 2.58018e+00 301 2008 4 5.75898e+01 9.67631e-01 157 2008 5 6.14839e+01 3.62218e-01 197 2008 6 6.26941e+01 4.08730e-01 305 2008 7 6.08615e+01 7.71483e-01 256 2008 8 5.88612e+01 1.29723e+00 198 2008 9 5.35186e+01 1.84434e+00 359 2008 10 4.67443e+01 2.18120e+00 575 2008 11 3.71479e+01 1.98535e+00 907 2008 12 3.35291e+01 6.89077e-01 1006 2009 1 3.63915e+01 1.82635e+00 758 2009 2 4.39301e+01 2.03174e+00 729 2009 3 5.21183e+01 1.49743e+00 281 2009 4 5.56098e+01 1.29286e-01 65 2009 5 6.09960e+01 8.86173e-01 307 2009 6 6.19838e+01 8.66784e-01 136 2009 7 6.16469e+01 2.26130e-01 64 2009 8 5.86630e+01 1.27830e+00 309 2009 9 5.27707e+01 2.09236e+00 310 2009 10 4.59433e+01 2.99663e+00 770 2009 11 3.76035e+01 2.24606e+00 582 2009 12 3.37699e+01 3.22454e-01 512 2010 1 3.60525e+01 2.02377e+00 384 2010 2 4.04210e+01 1.68549e+00 208 2010 3 nan nan 0 2010 4 5.90403e+01 6.88043e-01 79 2010 5 6.10467e+01 1.06542e+00 483 2010 6 6.19795e+01 6.78333e-01 384 2010 7 6.05086e+01 4.33128e-01 249 2010 8 5.88082e+01 1.04236e+00 466 2010 9 5.36170e+01 1.39327e+00 254 2010 10 4.54790e+01 2.57405e+00 879 2010 11 3.73227e+01 1.47675e+00 678 2010 12 3.25203e+01 7.96623e-01 829 2011 1 3.50746e+01 2.07032e+00 588 2011 2 4.08155e+01 2.61595e+00 376 2011 3 5.20541e+01 1.39172e+00 331 2011 4 5.77066e+01 1.80656e+00 313 2011 5 6.00774e+01 1.00427e+00 192 2011 6 6.20980e+01 0.00000e+00 2 2011 7 5.97712e+01 8.35907e-02 10 2011 8 nan nan 0 2011 9 5.24670e+01 1.43729e+00 427 2011 10 4.60592e+01 2.08741e+00 354 2011 11 3.79846e+01 1.67535e+00 997 2011 12 3.37856e+01 4.34825e-01 910 2012 1 3.63122e+01 1.34745e+00 702 2012 2 4.41252e+01 2.13519e+00 700 2012 3 5.22439e+01 2.08671e+00 661 2012 4 5.66457e+01 8.33849e-01 384 2012 5 6.11472e+01 6.73406e-01 283 2012 6 6.15437e+01 7.66974e-01 183 2012 7 6.13228e+01 1.02221e+00 143 2012 8 5.91959e+01 1.17379e+00 291 2012 9 5.16696e+01 1.76528e+00 365 2012 10 4.54569e+01 1.63435e+00 666 2012 11 3.79555e+01 1.81825e+00 694 2012 12 3.33213e+01 1.17809e+00 352 2013 1 3.58116e+01 1.80948e+00 709 2013 2 4.27231e+01 2.35511e+00 834 2013 3 5.19860e+01 2.64263e+00 558 2013 4 5.80709e+01 1.44249e+00 483 2013 5 6.10927e+01 7.82237e-01 376 2013 6 6.18882e+01 5.42177e-02 10 2013 7 6.13637e+01 1.35875e-01 64 2013 8 5.81238e+01 1.22647e+00 287 2013 9 5.34541e+01 1.73403e+00 360 2013 10 4.48373e+01 2.12036e+00 940 2013 11 3.77724e+01 2.32076e+00 445 2013 12 3.39306e+01 4.72708e-01 634 2014 1 3.59809e+01 1.85540e+00 590 2014 2 4.23008e+01 2.19443e+00 941 2014 3 5.02443e+01 1.75376e+00 813 2014 4 5.76994e+01 2.25218e+00 510 2014 5 6.06591e+01 6.18757e-01 253 2014 6 6.20262e+01 6.88490e-01 392 2014 7 6.09973e+01 5.73479e-01 267 2014 8 5.86042e+01 1.38756e+00 364 2014 9 5.10471e+01 5.13718e-01 128 2014 10 4.51010e+01 2.67268e+00 881 2014 11 3.73329e+01 1.73775e+00 956 2014 12 3.37711e+01 3.20581e-01 896 2015 1 3.54255e+01 1.35255e+00 725 2015 2 4.13278e+01 2.12867e+00 496 2015 3 5.07120e+01 2.82247e+00 876 2015 4 5.70527e+01 1.28631e+00 494 2015 5 6.06362e+01 7.03786e-01 315 2015 6 6.24536e+01 3.35671e-01 398 2015 7 6.15385e+01 4.28078e-01 199 2015 8 5.82351e+01 1.32840e+00 320 2015 9 5.38141e+01 2.30496e+00 429 2015 10 4.60278e+01 1.68350e+00 469 2015 11 3.79199e+01 2.09948e+00 879 2015 12 3.35158e+01 2.01580e-01 576 2016 1 3.42319e+01 2.97196e-01 192 2016 2 4.32830e+01 1.87636e+00 313 2016 3 5.12965e+01 1.78075e+00 218 2016 4 5.82178e+01 1.58407e+00 576 2016 5 6.10898e+01 7.55070e-01 384 2016 6 6.25512e+01 2.35501e-01 322 2016 7 6.12635e+01 4.99152e-01 192 2016 8 5.88371e+01 1.16855e+00 323 2016 9 5.19109e+01 1.34929e+00 258 2016 10 4.55773e+01 1.94711e+00 375 2016 11 3.77402e+01 1.95440e+00 1043 2016 12 3.31983e+01 6.11153e-01 783 2017 1 3.59266e+01 9.91493e-01 581 2017 2 4.29545e+01 2.35808e+00 991 2017 3 5.03876e+01 2.31835e+00 544 2017 4 5.54529e+01 6.09272e-02 64 2017 5 6.08653e+01 5.84241e-01 453 2017 6 6.19238e+01 3.52194e-01 117 2017 7 6.16667e+01 3.46894e-01 128 2017 8 5.80935e+01 1.07477e+00 241 2017 9 5.26304e+01 1.50430e+00 400 2017 10 4.51494e+01 3.30297e+00 390 2017 11 3.81271e+01 1.96188e+00 952 2017 12 3.37439e+01 4.27987e-01 1275 2018 1 3.50546e+01 2.11362e+00 499 2018 2 4.32057e+01 2.27832e+00 806 2018 3 5.12025e+01 2.93462e+00 706 2018 4 5.75386e+01 1.14920e+00 616 2018 5 nan nan 0 2018 6 6.12247e+01 6.04159e-01 105 2018 7 6.17211e+01 5.65598e-01 314 2018 8 5.81771e+01 1.16809e-01 16 2018 9 5.32835e+01 1.62838e+00 349 2018 10 4.47128e+01 2.43083e+00 967 2018 11 3.82431e+01 1.59186e+00 734 2018 12 3.38203e+01 3.81812e-01 551 2019 1 3.48416e+01 8.35220e-01 749 2019 2 4.38114e+01 2.41750e+00 1047 2019 3 5.13981e+01 2.71247e+00 705 2019 4 5.81941e+01 1.59611e+00 610 2019 5 6.13003e+01 7.57491e-01 573 2019 6 6.25277e+01 3.86222e-01 549 2019 7 6.15316e+01 3.83516e-01 130 2019 8 5.80945e+01 1.31326e+00 208 2019 9 5.31236e+01 1.41854e+00 426 2019 10 4.47070e+01 1.97915e+00 567 2019 11 3.78501e+01 2.10754e+00 847 2019 12 3.40150e+01 5.63427e-01 692 2020 1 3.59086e+01 1.64621e+00 919 2020 2 4.29447e+01 2.53162e+00 861 2020 3 5.24062e+01 2.54636e+00 622 2020 4 5.73463e+01 1.66650e+00 320 2020 5 6.11356e+01 6.41136e-01 448 2020 6 6.27087e+01 2.97673e-01 304 2020 7 6.14146e+01 6.03647e-01 191 2020 8 5.88163e+01 1.26555e+00 298 2020 9 5.28494e+01 1.73766e+00 398 2020 10 4.46213e+01 2.29541e+00 540 2020 11 3.61119e+01 8.26310e-01 326 2020 12 3.34722e+01 5.35829e-01 993 2021 1 3.67570e+01 1.62461e+00 728 2021 2 4.37180e+01 2.31112e+00 873 2021 3 5.16174e+01 2.56278e+00 844 2021 4 5.86724e+01 1.55200e+00 576 2021 5 6.12850e+01 9.86076e-01 141 2021 6 6.22097e+01 6.05090e-01 176 2021 7 6.09690e+01 1.15663e+00 354 2021 8 5.85023e+01 1.24869e+00 164 2021 9 5.09920e+01 1.42518e+00 401 2021 10 4.57259e+01 1.93518e+00 508 2021 11 3.66009e+01 1.95011e+00 636 2021 12 3.37187e+01 6.45010e-01 1134 2022 1 3.52460e+01 1.19525e+00 391 2022 2 4.33475e+01 2.66069e+00 664 2022 3 5.06824e+01 2.18188e+00 551 2022 4 5.90436e+01 5.39594e-01 192 2022 5 6.05349e+01 6.80313e-01 383 2022 6 6.22149e+01 8.44387e-01 289 2022 7 6.16810e+01 6.10520e-01 249 2022 8 5.76286e+01 7.87517e-01 168 2022 9 5.27585e+01 1.30593e+00 373 2022 10 4.51764e+01 2.83169e+00 780 2022 11 3.76709e+01 2.08804e+00 796 2022 12 3.39017e+01 4.40838e-01 870 2023 1 3.61087e+01 1.85221e+00 1110 2023 2 4.34877e+01 2.61144e+00 825 2023 3 5.16103e+01 2.88660e+00 775 2023 4 5.76347e+01 1.17729e+00 384 2023 5 6.07770e+01 1.04773e+00 608 2023 6 6.25499e+01 4.46382e-01 375 2023 7 6.09869e+01 1.10084e+00 265 2023 8 5.78416e+01 7.63839e-01 178 2023 9 5.30736e+01 1.72206e+00 426 2023 10 4.48354e+01 2.56110e+00 611 2023 11 3.74601e+01 1.95528e+00 852 2023 12 3.37488e+01 5.50731e-01 404 2024 1 nan nan 0 2024 2 4.38356e+01 2.80691e+00 763 2024 3 5.15310e+01 2.24870e+00 501 2024 4 5.52023e+01 1.21918e-01 64