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 6.16519e+01 2.27816e-01 235 2002 8 5.85956e+01 9.14231e-01 307 2002 9 5.22324e+01 2.59577e+00 271 2002 10 4.54566e+01 2.31464e+00 819 2002 11 3.93547e+01 1.15793e+00 317 2002 12 3.39819e+01 2.90205e-01 248 2003 1 3.60350e+01 1.38299e+00 545 2003 2 4.36271e+01 2.32217e+00 768 2003 3 5.02553e+01 2.66532e+00 417 2003 4 5.78657e+01 1.34893e+00 512 2003 5 6.11053e+01 4.97816e-01 462 2003 6 6.23945e+01 1.84654e-01 353 2003 7 6.17055e+01 3.97678e-01 409 2003 8 5.84397e+01 1.11203e+00 336 2003 9 5.25117e+01 1.79148e+00 192 2003 10 4.40771e+01 2.01325e+00 736 2003 11 3.80347e+01 1.45585e+00 954 2003 12 3.36628e+01 2.84356e-01 347 2004 1 3.58184e+01 1.49445e+00 724 2004 2 4.31511e+01 2.73569e+00 707 2004 3 5.21091e+01 2.07341e+00 1088 2004 4 5.86497e+01 1.32289e+00 512 2004 5 6.14982e+01 5.31337e-01 832 2004 6 6.24150e+01 9.90824e-02 419 2004 7 6.16650e+01 5.68854e-01 249 2004 8 5.81707e+01 1.36793e+00 450 2004 9 5.18752e+01 2.33928e+00 423 2004 10 4.44041e+01 2.60771e+00 914 2004 11 3.76022e+01 1.78846e+00 843 2004 12 3.38661e+01 4.83759e-01 571 2005 1 3.67328e+01 1.33912e+00 684 2005 2 4.27654e+01 1.95046e+00 1024 2005 3 5.10393e+01 2.58707e+00 400 2005 4 5.81356e+01 1.58550e+00 561 2005 5 6.16575e+01 4.68026e-01 576 2005 6 6.25800e+01 6.83224e-02 307 2005 7 6.15620e+01 5.17042e-01 641 2005 8 5.86947e+01 1.49505e+00 592 2005 9 5.32555e+01 1.56810e+00 503 2005 10 4.73297e+01 1.39644e+00 269 2005 11 3.84065e+01 1.63071e+00 729 2005 12 3.39676e+01 4.19743e-01 588 2006 1 3.68415e+01 1.95830e+00 512 2006 2 4.52745e+01 1.62636e+00 468 2006 3 5.12231e+01 2.40816e+00 1041 2006 4 5.78525e+01 1.41641e+00 937 2006 5 6.12996e+01 5.79408e-01 544 2006 6 6.24643e+01 1.32390e-01 557 2006 7 6.15469e+01 3.92885e-01 384 2006 8 5.87342e+01 1.06118e+00 476 2006 9 5.28924e+01 1.97779e+00 268 2006 10 4.46236e+01 2.25917e+00 704 2006 11 3.77164e+01 1.89570e+00 558 2006 12 3.37077e+01 4.74209e-01 514 2007 1 3.61206e+01 1.66685e+00 719 2007 2 4.38764e+01 2.71294e+00 521 2007 3 5.17314e+01 2.35805e+00 859 2007 4 5.82646e+01 1.41964e+00 826 2007 5 6.11802e+01 5.50823e-01 890 2007 6 6.24720e+01 2.16563e-01 574 2007 7 6.18242e+01 4.13942e-01 695 2007 8 5.84610e+01 1.28116e+00 645 2007 9 5.15375e+01 1.48843e+00 355 2007 10 4.65669e+01 1.62077e+00 417 2007 11 3.78407e+01 1.76667e+00 744 2007 12 3.37700e+01 4.05813e-01 932 2008 1 3.74442e+01 1.33859e+00 539 2008 2 4.19315e+01 2.28448e+00 768 2008 3 5.13808e+01 2.62846e+00 768 2008 4 5.80661e+01 1.47266e+00 896 2008 5 6.11680e+01 6.85810e-01 520 2008 6 6.24156e+01 1.87221e-01 509 2008 7 6.11646e+01 5.40699e-01 381 2008 8 5.83881e+01 1.04087e+00 125 2008 9 5.29027e+01 1.99092e+00 153 2008 10 4.60300e+01 2.09104e+00 490 2008 11 3.71569e+01 1.75744e+00 1076 2008 12 3.36473e+01 3.57310e-01 668 2009 1 3.66585e+01 1.98547e+00 642 2009 2 4.36228e+01 2.37164e+00 1024 2009 3 5.09567e+01 1.93472e+00 761 2009 4 5.89642e+01 1.41062e+00 514 2009 5 6.11483e+01 5.50833e-01 568 2009 6 6.25508e+01 1.32908e-01 457 2009 7 6.16375e+01 3.93562e-01 287 2009 8 5.90899e+01 1.20731e+00 558 2009 9 5.23947e+01 2.08465e+00 546 2009 10 4.49389e+01 2.19053e+00 754 2009 11 3.70059e+01 2.15060e+00 553 2009 12 3.37161e+01 3.17946e-01 513 2010 1 3.66209e+01 1.41167e+00 379 2010 2 4.21148e+01 2.03684e+00 221 2010 3 5.27904e+01 1.69927e+00 619 2010 4 5.73740e+01 1.17283e+00 512 2010 5 6.13473e+01 5.66464e-01 759 2010 6 6.23607e+01 1.55789e-01 639 2010 7 6.15903e+01 5.86142e-01 323 2010 8 5.86314e+01 1.28786e+00 582 2010 9 5.32537e+01 1.09027e+00 336 2010 10 4.52297e+01 2.57349e+00 1111 2010 11 3.81825e+01 1.73487e+00 724 2010 12 3.36566e+01 8.86701e-02 192 2011 1 3.63668e+01 2.08351e+00 497 2011 2 4.35407e+01 2.46850e+00 1120 2011 3 5.11415e+01 2.22960e+00 1116 2011 4 5.83215e+01 1.36376e+00 811 2011 5 6.15034e+01 5.41633e-01 787 2011 6 6.24110e+01 1.49178e-01 640 2011 7 6.14273e+01 4.27677e-01 577 2011 8 5.93416e+01 1.05158e+00 476 2011 9 5.27202e+01 9.60529e-01 430 2011 10 4.88873e+01 5.06137e-01 180 2011 11 3.81986e+01 1.89811e+00 923 2011 12 3.37043e+01 4.27293e-01 1140 2012 1 3.64672e+01 1.51095e+00 891 2012 2 4.52233e+01 1.94833e+00 439 2012 3 5.10594e+01 2.40249e+00 1069 2012 4 5.75088e+01 1.42372e+00 704 2012 5 6.14342e+01 5.41304e-01 432 2012 6 6.24790e+01 2.08400e-01 386 2012 7 6.17007e+01 6.96982e-01 329 2012 8 5.93994e+01 7.88578e-01 498 2012 9 5.28389e+01 2.46962e+00 474 2012 10 4.55296e+01 1.85166e+00 600 2012 11 3.76697e+01 1.71208e+00 957 2012 12 3.37273e+01 4.25412e-01 538 2013 1 3.61058e+01 1.73810e+00 688 2013 2 4.30385e+01 2.14230e+00 547 2013 3 5.30332e+01 2.27184e+00 611 2013 4 5.78670e+01 1.37189e+00 657 2013 5 6.14771e+01 4.84964e-01 629 2013 6 6.24481e+01 1.54018e-01 514 2013 7 6.12985e+01 4.22253e-01 442 2013 8 5.93352e+01 1.05480e+00 563 2013 9 5.12964e+01 2.00632e+00 339 2013 10 4.47454e+01 2.32792e+00 935 2013 11 3.80234e+01 1.87919e+00 560 2013 12 3.36379e+01 4.01275e-01 624 2014 1 3.56045e+01 1.98559e+00 373 2014 2 4.33704e+01 2.43632e+00 882 2014 3 5.06807e+01 2.19761e+00 704 2014 4 5.83967e+01 1.63791e+00 576 2014 5 6.12231e+01 5.82807e-01 751 2014 6 6.24871e+01 1.37991e-01 356 2014 7 6.17809e+01 4.28148e-01 273 2014 8 5.83669e+01 1.14149e+00 514 2014 9 5.43704e+01 1.93056e+00 135 2014 10 4.54126e+01 2.31426e+00 804 2014 11 3.77395e+01 2.09761e+00 776 2014 12 3.36552e+01 3.39320e-01 928 2015 1 3.56695e+01 1.66337e+00 442 2015 2 4.25023e+01 1.77308e+00 741 2015 3 5.02959e+01 2.32125e+00 891 2015 4 5.70925e+01 1.33048e+00 630 2015 5 6.12205e+01 5.07620e-01 768 2015 6 6.24180e+01 8.22192e-02 407 2015 7 6.21461e+01 1.46990e-01 320 2015 8 5.86911e+01 1.20735e+00 499 2015 9 5.33937e+01 2.37558e+00 247 2015 10 4.53208e+01 2.04739e+00 676 2015 11 3.73730e+01 2.18376e+00 663 2015 12 3.33874e+01 1.18704e-01 581 2016 1 3.47634e+01 7.12716e-01 169 2016 2 4.48631e+01 1.04590e+00 165 2016 3 5.15421e+01 2.12921e+00 448 2016 4 5.86406e+01 1.47970e+00 562 2016 5 6.12305e+01 5.44630e-01 589 2016 6 6.23155e+01 1.83875e-01 659 2016 7 6.15723e+01 6.38447e-01 505 2016 8 5.89429e+01 1.04213e+00 630 2016 9 5.27900e+01 2.02402e+00 661 2016 10 4.54970e+01 2.13598e+00 963 2016 11 3.73718e+01 1.86210e+00 1216 2016 12 3.36985e+01 4.78028e-01 899 2017 1 3.60219e+01 9.20714e-01 585 2017 2 4.41656e+01 2.13607e+00 880 2017 3 5.18341e+01 2.21300e+00 960 2017 4 5.78558e+01 1.32264e+00 646 2017 5 6.14903e+01 5.57689e-01 796 2017 6 6.23791e+01 9.33204e-02 299 2017 7 6.17033e+01 3.35050e-01 324 2017 8 5.88321e+01 1.02318e+00 517 2017 9 5.18718e+01 1.42676e+00 321 2017 10 4.54469e+01 2.05841e+00 683 2017 11 3.78796e+01 1.95354e+00 1001 2017 12 3.36203e+01 3.87718e-01 960 2018 1 3.56289e+01 1.85305e+00 455 2018 2 4.34029e+01 2.14967e+00 1101 2018 3 5.14600e+01 2.65038e+00 1101 2018 4 5.79619e+01 1.56923e+00 1021 2018 5 6.05557e+01 1.07710e-01 320 2018 6 6.23554e+01 1.49235e-01 452 2018 7 6.17378e+01 4.43362e-01 749 2018 8 5.86588e+01 1.04386e+00 482 2018 9 5.23487e+01 2.05281e+00 630 2018 10 4.49893e+01 2.52047e+00 870 2018 11 3.80407e+01 1.48528e+00 468 2018 12 3.39166e+01 4.67646e-01 206 2019 1 3.57046e+01 1.67106e+00 543 2019 2 4.37213e+01 2.31418e+00 960 2019 3 5.12643e+01 2.67028e+00 900 2019 4 5.80386e+01 1.52971e+00 576 2019 5 6.14600e+01 5.31766e-01 772 2019 6 6.23745e+01 1.86059e-01 833 2019 7 6.15414e+01 5.34823e-01 371 2019 8 5.84610e+01 1.37555e+00 310 2019 9 5.11526e+01 1.40446e+00 500 2019 10 4.47448e+01 2.61874e+00 645 2019 11 3.75558e+01 2.03059e+00 815 2019 12 3.36036e+01 3.31443e-01 444 2020 1 3.50947e+01 1.15685e+00 832 2020 2 4.39667e+01 1.92332e+00 853 2020 3 5.14368e+01 2.26138e+00 1271 2020 4 5.71288e+01 1.55501e+00 512 2020 5 6.10218e+01 5.27751e-01 384 2020 6 6.24191e+01 7.58536e-02 416 2020 7 6.15106e+01 6.77552e-01 358 2020 8 5.86809e+01 1.33337e+00 643 2020 9 5.26888e+01 1.16139e+00 194 2020 10 4.46934e+01 1.85244e+00 278 2020 11 3.72365e+01 1.99681e+00 737 2020 12 3.34145e+01 1.67505e-01 556 2021 1 3.63508e+01 1.85657e+00 1083 2021 2 4.46178e+01 1.78262e+00 769 2021 3 5.18703e+01 2.15485e+00 1152 2021 4 5.81813e+01 1.65845e+00 768 2021 5 6.13492e+01 6.18469e-01 679 2021 6 6.23109e+01 1.86671e-01 340 2021 7 6.16377e+01 5.14675e-01 406 2021 8 5.90597e+01 6.00921e-01 344 2021 9 5.14389e+01 2.24823e+00 587 2021 10 4.60788e+01 1.99382e+00 384 2021 11 3.65460e+01 1.49797e+00 753 2021 12 3.36871e+01 4.21230e-01 983 2022 1 3.45250e+01 5.94581e-01 384 2022 2 4.41727e+01 2.26701e+00 834 2022 3 5.06714e+01 2.44777e+00 767 2022 4 5.95881e+01 5.01615e-01 310 2022 5 6.09320e+01 4.70766e-01 583 2022 6 6.23080e+01 8.39545e-01 574 2022 7 6.17450e+01 2.42287e-01 168 2022 8 5.85365e+01 1.23994e+00 477 2022 9 5.29840e+01 1.91096e+00 510 2022 10 4.31562e+01 2.29669e+00 253 2022 11 3.78095e+01 2.43799e+00 458 2022 12 3.38760e+01 3.91670e-01 483 2023 1 3.49495e+01 1.33119e+00 152 2023 2 4.35807e+01 2.42528e+00 1127 2023 3 5.14778e+01 2.42234e+00 982 2023 4 5.74577e+01 1.54965e+00 318 2023 5 6.11793e+01 7.03173e-01 550 2023 6 6.24323e+01 6.65253e-02 309 2023 7 6.16914e+01 6.33585e-01 298 2023 8 5.87158e+01 1.37110e+00 502 2023 9 5.37189e+01 1.61982e+00 504 2023 10 4.47170e+01 2.50475e+00 607 2023 11 3.73264e+01 1.73140e+00 549 2023 12 3.36631e+01 3.51921e-01 549 2024 1 3.73087e+01 5.99525e-01 303 2024 2 4.41822e+01 2.22629e+00 814 2024 3 5.26247e+01 2.23851e+00 743 2024 4 nan nan 0