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 5.89127e+01 8.33587e-02 49 2002 8 5.72120e+01 2.95807e-03 64 2002 9 5.65063e+01 1.13036e-01 124 2002 10 4.91550e+01 1.89322e+00 580 2002 11 4.34680e+01 1.68831e+00 784 2002 12 3.99189e+01 3.38605e-01 612 2003 1 4.23249e+01 1.15885e+00 779 2003 2 4.77054e+01 1.82668e+00 535 2003 3 5.41060e+01 1.43156e+00 340 2003 4 5.79055e+01 2.95787e-03 4 2003 5 5.87469e+01 4.37113e-02 98 2003 6 5.90701e+01 2.93651e-03 64 2003 7 nan nan 0 2003 8 5.82991e+01 8.52826e-03 127 2003 9 5.52704e+01 1.41040e+00 221 2003 10 5.01147e+01 1.66318e+00 308 2003 11 4.29306e+01 1.53524e+00 382 2003 12 4.00592e+01 4.65700e-01 562 2004 1 4.21723e+01 1.11057e+00 568 2004 2 4.76544e+01 1.87397e+00 689 2004 3 5.49013e+01 1.97918e+00 514 2004 4 5.89579e+01 7.69774e-01 476 2004 5 5.96009e+01 4.85829e-01 121 2004 6 5.95016e+01 2.86938e-03 64 2004 7 5.88125e+01 2.79813e-03 52 2004 8 5.85947e+01 3.49409e-01 55 2004 9 5.69116e+01 3.14255e-03 62 2004 10 4.99770e+01 1.60428e+00 361 2004 11 4.26186e+01 1.69515e+00 437 2004 12 4.00456e+01 3.82721e-01 800 2005 1 4.19806e+01 1.43743e+00 397 2005 2 4.84216e+01 1.94425e+00 372 2005 3 5.46459e+01 1.35672e+00 377 2005 4 5.93707e+01 7.79190e-01 119 2005 5 5.96840e+01 5.13176e-01 118 2005 6 nan nan 0 2005 7 5.88463e+01 1.03144e-02 101 2005 8 5.86349e+01 1.01797e-02 35 2005 9 5.34073e+01 9.42292e-04 3 2005 10 4.91343e+01 2.21769e+00 285 2005 11 4.41200e+01 1.02815e+00 335 2005 12 4.00616e+01 3.86580e-01 685 2006 1 4.21584e+01 1.08757e+00 328 2006 2 4.92132e+01 1.45781e+00 618 2006 3 5.42943e+01 1.20297e+00 326 2006 4 nan nan 0 2006 5 5.91677e+01 9.20988e-02 49 2006 6 5.96420e+01 1.06126e-02 44 2006 7 5.89868e+01 3.71613e-01 128 2006 8 nan nan 0 2006 9 5.42987e+01 7.55073e-01 293 2006 10 5.07894e+01 1.76502e+00 258 2006 11 4.39752e+01 1.54948e+00 673 2006 12 3.98793e+01 3.60613e-01 680 2007 1 4.22880e+01 1.52455e+00 547 2007 2 4.78197e+01 1.75580e+00 836 2007 3 5.43847e+01 1.05673e+00 145 2007 4 5.85331e+01 3.31120e-01 185 2007 5 5.92652e+01 1.08060e-02 44 2007 6 5.91651e+01 3.00644e-01 84 2007 7 5.88907e+01 1.74290e-02 64 2007 8 5.79410e+01 5.99059e-01 226 2007 9 5.53398e+01 1.16627e+00 190 2007 10 4.89194e+01 5.77373e-01 239 2007 11 4.35131e+01 1.38060e+00 364 2007 12 3.99699e+01 3.90027e-01 581 2008 1 4.21187e+01 1.22814e+00 649 2008 2 4.74299e+01 1.36801e+00 632 2008 3 5.44663e+01 2.10359e+00 350 2008 4 5.91245e+01 3.85680e-01 217 2008 5 5.90483e+01 5.81110e-02 72 2008 6 nan nan 0 2008 7 5.86688e+01 1.28644e-01 125 2008 8 5.81806e+01 3.04493e-01 128 2008 9 5.55327e+01 4.81645e-01 192 2008 10 4.93415e+01 2.08746e+00 725 2008 11 4.33369e+01 1.19075e+00 467 2008 12 3.98575e+01 1.29479e-01 612 2009 1 4.20081e+01 1.50583e+00 492 2009 2 4.85914e+01 1.82099e+00 367 2009 3 5.53838e+01 1.87632e+00 290 2009 4 5.87331e+01 7.92780e-01 465 2009 5 5.90762e+01 1.68724e-01 99 2009 6 5.92874e+01 1.46848e-01 95 2009 7 5.89150e+01 2.98279e-01 286 2009 8 5.78366e+01 5.32008e-01 87 2009 9 5.55563e+01 9.52288e-01 187 2009 10 4.87476e+01 1.73324e+00 507 2009 11 4.30329e+01 1.38864e+00 447 2009 12 4.01098e+01 4.08790e-01 612 2010 1 4.19524e+01 1.62691e+00 530 2010 2 4.73937e+01 1.00645e+00 414 2010 3 5.56377e+01 8.62177e-01 234 2010 4 5.78019e+01 3.44692e-01 162 2010 5 5.93487e+01 6.50974e-01 119 2010 6 5.94765e+01 5.12918e-02 153 2010 7 5.85081e+01 3.63400e-03 56 2010 8 5.80800e+01 6.24714e-01 163 2010 9 5.57542e+01 1.54511e-01 104 2010 10 4.94790e+01 1.19060e+00 481 2010 11 4.21831e+01 6.60547e-01 209 2010 12 4.01376e+01 3.39842e-01 436 2011 1 4.27101e+01 9.76528e-01 439 2011 2 4.70359e+01 1.63015e+00 507 2011 3 5.37388e+01 1.77059e+00 575 2011 4 5.90178e+01 6.41481e-01 358 2011 5 5.90527e+01 1.91263e-01 128 2011 6 5.96084e+01 1.04357e-02 64 2011 7 5.87100e+01 1.71429e-01 54 2011 8 5.81032e+01 6.11863e-01 92 2011 9 5.42430e+01 1.18954e+00 236 2011 10 4.90025e+01 1.94526e+00 433 2011 11 4.24502e+01 9.18452e-01 354 2011 12 4.01826e+01 3.51101e-01 424 2012 1 4.11668e+01 8.39030e-01 659 2012 2 4.82941e+01 1.85104e+00 719 2012 3 5.44812e+01 8.45090e-01 248 2012 4 5.87771e+01 6.50086e-01 126 2012 5 5.89056e+01 9.34078e-02 187 2012 6 5.96313e+01 4.75778e-03 64 2012 7 5.85335e+01 4.69384e-03 64 2012 8 5.82488e+01 3.15806e-03 64 2012 9 5.53192e+01 1.35505e+00 256 2012 10 4.91974e+01 2.74808e+00 133 2012 11 4.34685e+01 1.79649e+00 517 2012 12 4.00068e+01 2.09318e-01 433 2013 1 4.21320e+01 1.26450e+00 559 2013 2 4.81792e+01 2.08775e+00 732 2013 3 5.41298e+01 1.52833e+00 394 2013 4 5.87846e+01 6.43362e-01 300 2013 5 5.91406e+01 4.64912e-02 102 2013 6 nan nan 0 2013 7 5.86839e+01 1.25768e-01 128 2013 8 5.83133e+01 4.73105e-01 135 2013 9 5.43752e+01 5.06123e-01 173 2013 10 5.07205e+01 1.75194e+00 128 2013 11 4.32859e+01 1.27190e+00 506 2013 12 3.97782e+01 1.72302e-01 461 2014 1 4.25340e+01 1.34964e+00 660 2014 2 4.71753e+01 1.68875e+00 548 2014 3 5.42105e+01 1.76341e+00 550 2014 4 5.89651e+01 7.10691e-01 297 2014 5 5.87483e+01 5.90538e-03 54 2014 6 5.94199e+01 3.21536e-03 63 2014 7 5.88674e+01 1.82103e-01 176 2014 8 5.84143e+01 2.87695e-03 64 2014 9 5.49207e+01 1.17972e+00 226 2014 10 4.86821e+01 1.35184e+00 383 2014 11 4.31240e+01 1.41104e+00 589 2014 12 3.99499e+01 3.02971e-01 630 2015 1 4.21359e+01 1.66091e+00 699 2015 2 4.76698e+01 2.25964e+00 525 2015 3 5.40819e+01 1.47693e+00 494 2015 4 5.85223e+01 7.05398e-01 431 2015 5 5.94714e+01 5.26016e-01 131 2015 6 nan nan 0 2015 7 5.85853e+01 5.73484e-03 9 2015 8 5.82645e+01 2.67564e-01 312 2015 9 5.42812e+01 1.31010e+00 231 2015 10 4.85253e+01 1.52319e+00 481 2015 11 4.36893e+01 1.58747e+00 437 2015 12 3.99419e+01 3.24402e-01 475 2016 1 4.13228e+01 1.13844e+00 479 2016 2 4.72679e+01 2.06362e+00 753 2016 3 5.48043e+01 1.78231e+00 259 2016 4 5.88005e+01 3.12409e-01 198 2016 5 5.89747e+01 9.96962e-03 64 2016 6 5.95564e+01 5.24761e-02 126 2016 7 5.86764e+01 1.80081e-01 127 2016 8 5.75573e+01 2.97206e-01 153 2016 9 5.53449e+01 1.03127e+00 318 2016 10 4.96837e+01 1.17106e+00 189 2016 11 4.10407e+01 7.87693e-03 64 2016 12 3.99237e+01 1.86225e-01 363 2017 1 4.24525e+01 1.40589e+00 617 2017 2 4.71259e+01 1.27381e+00 567 2017 3 5.36316e+01 1.45725e+00 248 2017 4 5.82158e+01 6.85051e-01 298 2017 5 5.88872e+01 1.48022e-01 183 2017 6 5.96087e+01 5.21893e-02 324 2017 7 5.90079e+01 4.82965e-01 161 2017 8 5.77518e+01 6.07227e-01 123 2017 9 5.52459e+01 1.32586e+00 256 2017 10 4.90205e+01 1.97584e+00 259 2017 11 4.39806e+01 1.77780e+00 466 2017 12 3.99022e+01 3.95094e-01 424 2018 1 4.30980e+01 1.01072e+00 377 2018 2 4.81617e+01 1.51246e+00 526 2018 3 5.50512e+01 2.30765e+00 321 2018 4 5.89906e+01 7.86966e-01 196 2018 5 5.96971e+01 5.11620e-01 121 2018 6 5.92932e+01 1.71492e-01 108 2018 7 5.86772e+01 1.55539e-01 118 2018 8 5.78423e+01 2.40475e-01 224 2018 9 5.57790e+01 1.13028e+00 124 2018 10 4.78037e+01 8.54419e-01 497 2018 11 4.30192e+01 1.56803e+00 662 2018 12 3.99344e+01 2.78950e-01 492 2019 1 4.25016e+01 1.51086e+00 722 2019 2 4.73109e+01 1.59274e+00 520 2019 3 5.46059e+01 1.50962e+00 479 2019 4 5.89093e+01 8.02753e-01 468 2019 5 5.90354e+01 3.17642e-03 50 2019 6 5.96060e+01 1.19071e-01 100 2019 7 5.89168e+01 3.64949e-02 64 2019 8 5.77999e+01 2.69971e-01 182 2019 9 nan nan 0 2019 10 4.93715e+01 1.95116e+00 432 2019 11 4.37184e+01 1.80963e+00 735 2019 12 3.99264e+01 3.28045e-01 722 2020 1 4.25502e+01 1.53317e+00 320 2020 2 4.76018e+01 2.10099e+00 614 2020 3 5.40920e+01 2.12790e+00 288 2020 4 5.89283e+01 7.28121e-01 494 2020 5 5.89799e+01 5.81832e-02 78 2020 6 5.95462e+01 9.90076e-02 343 2020 7 5.89242e+01 2.71292e-01 249 2020 8 5.84408e+01 7.63327e-02 90 2020 9 5.43153e+01 6.96328e-01 130 2020 10 4.92612e+01 8.78164e-01 310 2020 11 4.36321e+01 2.05397e+00 442 2020 12 3.98497e+01 3.32629e-01 598 2021 1 4.22987e+01 1.22018e+00 788 2021 2 4.86064e+01 1.72172e+00 664 2021 3 5.53290e+01 1.65206e+00 372 2021 4 5.89709e+01 6.82684e-01 214 2021 5 5.91866e+01 5.03375e-01 171 2021 6 nan nan 0 2021 7 5.88337e+01 4.09189e-01 212 2021 8 5.84444e+01 4.73705e-01 74 2021 9 5.46055e+01 1.59473e+00 217 2021 10 4.90136e+01 1.45936e+00 231 2021 11 4.35088e+01 1.71403e+00 761 2021 12 3.99604e+01 3.96514e-01 370 2022 1 4.21593e+01 1.39884e+00 1014 2022 2 4.82884e+01 1.92908e+00 437 2022 3 5.42111e+01 1.56942e+00 357 2022 4 5.94091e+01 2.75490e-01 118 2022 5 5.87749e+01 1.03420e-02 117 2022 6 5.95198e+01 2.61275e-02 193 2022 7 5.86355e+01 1.41354e-02 128 2022 8 5.76723e+01 5.60701e-01 295 2022 9 5.43094e+01 1.17373e+00 140 2022 10 4.98801e+01 1.21855e+00 384 2022 11 4.30063e+01 1.55661e+00 804 2022 12 4.00015e+01 3.45773e-01 1009 2023 1 4.21413e+01 1.45930e+00 777 2023 2 4.80262e+01 2.36173e+00 498 2023 3 5.43156e+01 2.01365e+00 579 2023 4 5.90615e+01 4.96576e-01 361 2023 5 5.94323e+01 5.28626e-01 117 2023 6 5.95662e+01 1.02476e-01 80 2023 7 5.83665e+01 5.66968e-03 38 2023 8 5.76272e+01 6.78358e-01 162 2023 9 5.57368e+01 8.65084e-01 255 2023 10 5.04328e+01 7.15940e-01 187 2023 11 4.26300e+01 1.32216e+00 471 2023 12 4.02063e+01 3.55676e-01 528 2024 1 4.16550e+01 1.30501e+00 653 2024 2 4.82205e+01 1.98061e+00 430 2024 3 5.45557e+01 1.36262e+00 453 2024 4 nan nan 0