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 6.62836e-01 4.03953e-01 45 2002 8 2.06061e+00 1.26715e+00 125 2002 9 2.09733e+00 1.46854e+00 182 2002 10 1.86544e+00 1.21146e+00 553 2002 11 1.14560e+00 3.19548e-01 404 2002 12 1.05207e+00 5.20697e-01 538 2003 1 7.61552e-01 1.06066e-01 410 2003 2 1.45072e+00 9.92576e-01 487 2003 3 1.83449e+00 5.87997e-01 137 2003 4 1.72470e+00 3.76085e-01 360 2003 5 2.25399e+00 6.94135e-01 176 2003 6 1.73330e+00 3.06706e-01 55 2003 7 2.51714e+00 7.05540e-01 175 2003 8 2.02551e+00 1.48046e+00 127 2003 9 1.84912e+00 1.87343e+00 280 2003 10 1.15275e+00 1.62996e-01 409 2003 11 1.72700e+00 2.17831e+00 658 2003 12 1.47782e+00 3.08146e-01 684 2004 1 1.47420e+00 3.01317e-01 628 2004 2 2.05799e+00 8.40828e-01 350 2004 3 1.99499e+00 4.71798e-01 505 2004 4 2.21815e+00 5.27088e-01 288 2004 5 2.10578e+00 4.51704e-01 210 2004 6 2.20921e+00 5.31948e-01 281 2004 7 4.24096e+00 7.73029e-02 38 2004 8 1.62335e+00 4.17431e-01 154 2004 9 1.31183e+00 3.39033e-01 171 2004 10 8.24987e-01 2.71051e-01 413 2004 11 9.10512e-01 1.92758e-01 447 2004 12 9.56981e-01 2.05487e-01 274 2005 1 1.41378e+00 2.83004e-01 604 2005 2 1.59499e+00 3.46176e-01 521 2005 3 1.63224e+00 2.69948e-01 499 2005 4 1.56319e+00 2.21884e-01 457 2005 5 1.84754e+00 7.89923e-01 161 2005 6 3.00981e+00 3.85438e-01 82 2005 7 1.95410e+00 1.45583e+00 31 2005 8 2.43976e+00 5.64978e-01 132 2005 9 1.35565e+00 3.85354e-01 193 2005 10 1.76165e+00 8.42384e-01 475 2005 11 1.69494e+00 4.81909e-01 616 2005 12 1.44432e+00 2.94974e-01 636 2006 1 1.83063e+00 4.38565e-01 536 2006 2 2.28662e+00 4.43245e-01 884 2006 3 2.26997e+00 3.27904e-01 795 2006 4 2.20955e+00 2.98913e-01 516 2006 5 2.08021e+00 6.98955e-01 433 2006 6 1.93715e+00 8.23362e-01 349 2006 7 1.98235e+00 1.02390e+00 164 2006 8 1.94629e+00 3.58941e-01 281 2006 9 1.12555e+00 4.65069e-01 275 2006 10 1.23845e+00 3.27365e-01 681 2006 11 1.56862e+00 3.47038e-01 501 2006 12 1.98593e+00 1.32050e+00 219 2007 1 2.06457e+00 3.20347e-01 379 2007 2 2.40221e+00 5.20649e-01 559 2007 3 2.36584e+00 4.76638e-01 553 2007 4 2.22336e+00 6.65722e-01 395 2007 5 2.05706e+00 6.67045e-01 87 2007 6 2.28681e+00 6.13816e-01 141 2007 7 2.21785e+00 5.80599e-01 248 2007 8 1.93728e+00 3.00863e-01 182 2007 9 1.83973e+00 4.37813e-01 370 2007 10 1.95006e+00 4.27747e-01 300 2007 11 1.91075e+00 3.39970e-01 711 2007 12 2.11062e+00 4.48120e-01 687 2008 1 2.07416e+00 4.21703e-01 360 2008 2 2.42531e+00 5.12428e-01 466 2008 3 2.28779e+00 5.76100e-01 562 2008 4 1.71062e+00 1.07364e+00 317 2008 5 2.06939e+00 6.77577e-01 298 2008 6 2.56358e+00 1.00820e+00 338 2008 7 2.47401e+00 2.13328e-01 157 2008 8 1.56940e+00 3.01056e-01 161 2008 9 2.18113e+00 7.91351e-01 168 2008 10 2.27657e+00 1.12306e+00 782 2008 11 2.04882e+00 3.42465e-01 952 2008 12 2.18085e+00 3.33179e-01 836 2009 1 2.39037e+00 3.48011e-01 734 2009 2 2.47906e+00 3.34563e-01 710 2009 3 2.80873e+00 4.40173e-01 954 2009 4 2.12405e+00 2.22700e-01 194 2009 5 2.53482e+00 7.88096e-01 282 2009 6 2.69990e+00 4.23799e-01 179 2009 7 1.74415e+00 3.12625e-01 194 2009 8 1.49941e+00 1.22491e-01 65 2009 9 2.57157e+00 1.88351e+00 291 2009 10 1.24516e+00 3.23688e-01 346 2009 11 1.39377e+00 3.27827e-01 492 2009 12 2.04611e+00 6.07268e-01 335 2010 1 1.89887e+00 3.55019e-01 560 2010 2 1.99579e+00 2.42713e-01 588 2010 3 2.22477e+00 4.57103e-01 936 2010 4 1.66709e+00 4.46898e-01 532 2010 5 2.20289e+00 5.61431e-01 206 2010 6 2.14842e+00 7.09107e-01 236 2010 7 2.68502e+00 7.06116e-01 139 2010 8 1.81557e+00 3.41446e-01 146 2010 9 1.44729e+00 3.84480e-01 270 2010 10 1.58091e+00 2.76235e-01 1028 2010 11 1.73327e+00 3.60427e-01 836 2010 12 1.96643e+00 2.81379e-01 948 2011 1 2.37341e+00 3.55738e-01 573 2011 2 2.69126e+00 4.29961e-01 482 2011 3 2.68418e+00 5.06511e-01 948 2011 4 2.40628e+00 3.53331e-01 576 2011 5 1.85958e+00 8.65089e-01 262 2011 6 1.73515e+00 3.38027e-01 172 2011 7 2.38648e+00 9.12113e-01 201 2011 8 2.06762e+00 5.31265e-01 138 2011 9 1.58996e+00 2.42710e-01 388 2011 10 1.57133e+00 3.35247e-01 538 2011 11 1.71584e+00 4.37940e-01 694 2011 12 1.93341e+00 8.73483e-01 866 2012 1 2.12777e+00 3.37724e-01 640 2012 2 2.43456e+00 2.58073e-01 478 2012 3 2.47156e+00 4.18422e-01 462 2012 4 2.00034e+00 5.70733e-01 381 2012 5 2.10603e+00 8.29790e-01 346 2012 6 9.00847e-01 2.26753e-02 9 2012 7 1.63335e+00 1.39134e-01 131 2012 8 1.41924e+00 3.80718e-01 313 2012 9 1.12603e+00 5.64079e-01 273 2012 10 1.01060e+00 3.72767e-01 394 2012 11 1.52429e+00 4.32412e-01 652 2012 12 1.59492e+00 6.83576e-01 433 2013 1 1.73748e+00 3.56991e-01 519 2013 2 1.92634e+00 4.91362e-01 643 2013 3 2.02791e+00 3.41211e-01 692 2013 4 2.24157e+00 3.96295e-01 318 2013 5 1.67130e+00 5.58315e-01 301 2013 6 2.27760e+00 3.27494e-01 299 2013 7 1.43335e+00 1.39156e-01 154 2013 8 2.37774e+00 1.03512e+00 396 2013 9 2.83630e+00 1.05505e+00 199 2013 10 1.51995e+00 5.55070e-01 427 2013 11 1.70457e+00 2.77066e-02 18 2013 12 1.61125e+00 3.35205e-01 514 2014 1 1.88295e+00 3.74896e-01 634 2014 2 2.09068e+00 2.91042e-01 565 2014 3 2.22326e+00 3.87805e-01 569 2014 4 1.56371e+00 8.20177e-01 384 2014 5 2.26416e+00 8.40623e-01 286 2014 6 2.63859e+00 6.37956e-01 208 2014 7 2.22578e+00 1.25494e+00 230 2014 8 2.63609e+00 7.68606e-01 330 2014 9 2.75932e+00 4.74955e-01 143 2014 10 1.16213e+00 3.50872e-01 828 2014 11 1.39384e+00 2.36027e-01 624 2014 12 1.30957e+00 2.82654e-01 505 2015 1 1.59863e+00 4.21945e-01 443 2015 2 1.87954e+00 3.82642e-01 670 2015 3 1.83659e+00 2.13096e-01 442 2015 4 1.74912e+00 7.45174e-01 287 2015 5 2.24105e+00 1.19056e+00 465 2015 6 2.70052e+00 9.64567e-01 167 2015 7 1.84515e+00 2.37177e-01 61 2015 8 1.81832e+00 8.99511e-01 145 2015 9 1.29616e+00 1.03415e+00 73 2015 10 2.40505e+00 1.76996e+00 455 2015 11 1.56973e+00 5.41213e-01 299 2015 12 1.29664e+00 1.29498e+00 213 2016 1 1.59700e+00 6.17530e-01 477 2016 2 1.67061e+00 3.03207e-01 766 2016 3 1.91567e+00 3.51669e-01 332 2016 4 2.07132e+00 5.40473e-01 390 2016 5 2.08848e+00 6.95981e-01 416 2016 6 2.72544e+00 2.97543e-01 246 2016 7 2.78855e+00 1.82768e+00 129 2016 8 1.58445e+00 5.96100e-01 168 2016 9 2.63220e+00 1.38599e+00 432 2016 10 1.28123e+00 3.68664e-01 244 2016 11 1.20123e+00 2.97729e-01 463 2016 12 1.97758e+00 8.43171e-01 577 2017 1 1.95874e+00 3.64879e-01 437 2017 2 2.12565e+00 3.89583e-01 1011 2017 3 2.54201e+00 4.56454e-01 749 2017 4 2.44683e+00 5.51776e-01 408 2017 5 2.24860e+00 4.76126e-01 327 2017 6 3.13653e+00 7.87106e-01 151 2017 7 1.23295e+00 6.25906e-01 46 2017 8 2.32492e+00 8.45532e-01 142 2017 9 1.18118e+00 4.75091e-01 171 2017 10 9.04090e-01 4.58447e-01 125 2017 11 1.53800e+00 5.44087e-01 674 2017 12 1.93530e+00 6.85937e-01 685 2018 1 1.54284e+00 2.44220e-01 550 2018 2 1.80329e+00 2.17636e-01 382 2018 3 1.61293e+00 2.61539e-01 883 2018 4 2.22349e+00 4.75841e-01 485 2018 5 1.94026e+00 1.02371e+00 185 2018 6 1.84369e+00 6.13180e-01 269 2018 7 2.44827e+00 4.36433e-01 107 2018 8 1.18867e+00 5.22373e-01 177 2018 9 3.14326e+00 3.34363e+00 206 2018 10 1.85657e+00 5.85598e-01 283 2018 11 1.64727e+00 6.37545e-01 358 2018 12 1.45618e+00 5.31832e-01 472 2019 1 1.57527e+00 2.45298e-01 611 2019 2 1.66362e+00 2.67890e-01 539 2019 3 1.59724e+00 2.89536e-01 633 2019 4 2.12675e+00 2.92544e-01 331 2019 5 2.72481e+00 3.83403e-01 368 2019 6 1.49656e+00 1.04863e+00 185 2019 7 2.34453e+00 5.98965e-01 438 2019 8 3.67865e+00 4.64737e+00 199 2019 9 1.52493e+00 5.49787e-01 170 2019 10 1.95926e+00 7.56142e-01 302 2019 11 1.97865e+00 6.71525e-01 411 2019 12 1.26928e+00 5.56714e-01 184 2020 1 1.70720e+00 3.36178e-01 522 2020 2 1.82868e+00 3.65449e-01 461 2020 3 2.08898e+00 4.19008e-01 471 2020 4 1.81840e+00 5.01115e-01 270 2020 5 1.95487e+00 5.66559e-01 431 2020 6 2.69846e+00 1.69617e+00 299 2020 7 1.75213e+00 1.10778e+00 135 2020 8 1.98491e+00 3.06303e-01 203 2020 9 1.89354e+00 3.24137e-01 114 2020 10 1.50609e+00 4.87438e-01 107 2020 11 1.14271e+00 4.22632e-01 315 2020 12 1.26135e+00 4.61766e-01 135 2021 1 1.37284e+00 3.50090e-01 310 2021 2 1.84457e+00 4.44330e-01 784 2021 3 1.97520e+00 4.82747e-01 428 2021 4 1.72199e+00 9.46517e-01 275 2021 5 2.23647e+00 7.05250e-01 436 2021 6 2.52176e+00 6.26011e-01 211 2021 7 1.13048e+00 6.03328e-01 93 2021 8 2.08838e+00 1.27564e+00 166 2021 9 1.85898e+00 8.48075e-01 132 2021 10 1.51393e+00 9.45620e-01 381 2021 11 1.25879e+00 7.72462e-01 528 2021 12 1.41135e+00 2.19672e-01 758 2022 1 1.92559e+00 2.24947e-01 805 2022 2 2.22565e+00 4.94936e-01 995 2022 3 2.25186e+00 4.37634e-01 601 2022 4 2.53795e+00 4.18108e-01 28 2022 5 2.37797e+00 8.40094e-01 519 2022 6 2.15929e+00 3.40441e-01 79 2022 7 1.91981e+00 1.39004e-01 105 2022 8 2.06714e+00 3.79337e-01 152 2022 9 1.94649e+00 1.17932e+00 335 2022 10 2.03977e+00 1.92899e+00 632 2022 11 1.66020e+00 8.95936e-01 459 2022 12 1.46780e+00 2.02611e-01 610 2023 1 1.69474e+00 5.28105e-01 657 2023 2 2.18615e+00 4.04566e-01 1069 2023 3 2.38073e+00 4.10523e-01 720 2023 4 2.92648e+00 5.81194e-01 368 2023 5 2.73518e+00 7.54303e-01 507 2023 6 1.88185e+00 9.12740e-01 209 2023 7 2.82075e+00 5.60864e-01 218 2023 8 2.32263e+00 4.37020e-01 271 2023 9 2.23155e+00 8.09505e-01 608 2023 10 1.71519e+00 9.27978e-01 323 2023 11 1.85409e+00 5.88797e-01 654 2023 12 2.19010e+00 2.54405e-01 255 2024 1 2.02979e+00 1.91040e-01 316 2024 2 2.24706e+00 4.00953e-01 746 2024 3 2.47920e+00 3.01518e-01 425 2024 4 nan nan 0