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 2.05394e+00 4.56440e-02 64 2002 8 1.69473e+00 5.87345e-02 192 2002 9 1.54887e+00 1.91080e-01 371 2002 10 1.38506e+00 2.98253e-01 862 2002 11 1.40294e+00 2.25667e-01 581 2002 12 8.66863e-01 4.41807e-01 520 2003 1 6.57797e-01 1.58463e-01 523 2003 2 1.26157e+00 9.63514e-01 543 2003 3 1.55868e+00 2.05635e-01 115 2003 4 1.22551e+00 1.85543e-01 510 2003 5 1.79976e+00 1.68339e+00 113 2003 6 1.78139e+00 4.00022e-01 181 2003 7 1.36816e+00 2.86893e-01 201 2003 8 9.39079e-01 1.49902e-01 132 2003 9 8.83746e-01 6.42124e-01 318 2003 10 1.04543e+00 1.94954e-01 430 2003 11 1.18462e+00 2.34404e-01 786 2003 12 1.46680e+00 1.66653e-01 724 2004 1 1.44539e+00 3.32875e-01 710 2004 2 1.56797e+00 2.17782e-01 443 2004 3 1.54867e+00 3.34022e-01 551 2004 4 1.80149e+00 3.17341e-01 375 2004 5 2.15705e+00 4.40010e-01 409 2004 6 2.03547e+00 4.90540e-01 401 2004 7 2.35629e+00 5.55288e-01 74 2004 8 9.41183e-01 4.88947e-02 61 2004 9 1.72732e+00 7.95138e-01 94 2004 10 6.13517e-01 2.09555e-01 316 2004 11 9.06699e-01 9.79010e-02 682 2004 12 1.17200e+00 2.40700e-01 466 2005 1 1.18452e+00 1.94288e-01 614 2005 2 1.31170e+00 2.02761e-01 644 2005 3 1.39842e+00 2.37855e-01 259 2005 4 1.24823e+00 2.14002e-01 479 2005 5 1.96343e+00 3.56132e-01 172 2005 6 2.09300e+00 5.74259e-01 209 2005 7 2.64417e+00 2.17261e+00 220 2005 8 2.26070e+00 5.89468e-01 166 2005 9 1.69362e+00 2.51335e-01 256 2005 10 1.59969e+00 4.60045e-01 596 2005 11 1.47397e+00 2.73857e-01 706 2005 12 1.45408e+00 3.99706e-01 717 2006 1 1.75235e+00 5.26942e-01 677 2006 2 2.07703e+00 5.84796e-01 928 2006 3 2.20713e+00 2.68030e-01 914 2006 4 1.93897e+00 5.13669e-01 592 2006 5 1.86604e+00 5.35589e-01 502 2006 6 2.34098e+00 5.36781e-01 384 2006 7 1.70476e+00 3.84214e-01 148 2006 8 1.75740e+00 3.66674e-01 256 2006 9 1.41873e+00 5.77743e-01 403 2006 10 1.16320e+00 2.62711e-01 762 2006 11 1.33712e+00 2.42685e-01 542 2006 12 1.77567e+00 2.17448e-01 270 2007 1 1.87685e+00 1.33793e-01 345 2007 2 1.95058e+00 1.83498e-01 512 2007 3 1.75939e+00 3.67417e-01 621 2007 4 1.67395e+00 5.08932e-01 502 2007 5 2.28061e+00 6.48981e-01 265 2007 6 1.77147e+00 4.69727e-01 187 2007 7 1.97106e+00 3.17825e-01 123 2007 8 1.71074e+00 2.68154e-01 250 2007 9 1.39932e+00 3.13490e-01 531 2007 10 1.38485e+00 2.00969e-01 341 2007 11 1.56696e+00 1.82651e-01 720 2007 12 1.80895e+00 1.80259e-01 815 2008 1 1.50080e+00 3.91308e-01 437 2008 2 1.91928e+00 4.75917e-01 496 2008 3 2.13828e+00 7.73320e-01 549 2008 4 1.89410e+00 4.27622e-01 468 2008 5 1.53166e+00 6.52055e-01 321 2008 6 2.31358e+00 2.94518e-01 321 2008 7 2.19888e+00 6.59302e-01 279 2008 8 2.68378e+00 2.65897e+00 201 2008 9 1.98336e+00 7.15863e-01 362 2008 10 1.81416e+00 7.10583e-01 719 2008 11 1.83611e+00 2.96623e-01 1036 2008 12 1.99395e+00 2.63998e-01 773 2009 1 2.18223e+00 4.47269e-01 720 2009 2 2.22705e+00 3.31479e-01 705 2009 3 2.56222e+00 4.01271e-01 956 2009 4 1.85371e+00 3.35665e-01 294 2009 5 2.33495e+00 7.52959e-01 283 2009 6 2.93140e+00 3.57176e-01 78 2009 7 1.06909e+00 3.57156e-01 165 2009 8 1.50061e+00 1.68870e-01 200 2009 9 2.55098e+00 1.48957e+00 219 2009 10 1.25013e+00 2.21536e-01 784 2009 11 1.32662e+00 3.71276e-01 465 2009 12 1.78775e+00 2.89651e-01 320 2010 1 1.70011e+00 3.73705e-01 621 2010 2 1.88491e+00 2.80235e-01 577 2010 3 2.12114e+00 2.53884e-01 756 2010 4 1.32637e+00 2.12769e-01 504 2010 5 1.75745e+00 1.57977e-01 341 2010 6 1.90918e+00 3.63626e-01 350 2010 7 1.07483e+00 1.74824e-01 79 2010 8 1.29598e+00 1.04816e-01 128 2010 9 1.14735e+00 2.39663e-01 478 2010 10 1.39537e+00 2.89391e-01 1225 2010 11 1.55180e+00 2.53742e-01 977 2010 12 1.64782e+00 3.02120e-01 998 2011 1 2.13175e+00 4.16828e-01 571 2011 2 1.92479e+00 2.82551e-01 726 2011 3 2.31291e+00 3.79996e-01 862 2011 4 1.77811e+00 4.60500e-01 645 2011 5 1.94334e+00 3.88784e-01 414 2011 6 1.68632e+00 2.60698e-01 258 2011 7 1.74804e+00 2.50217e-01 256 2011 8 1.15651e+00 1.82567e-01 125 2011 9 1.22789e+00 2.09498e-01 175 2011 10 1.22687e+00 3.21935e-01 645 2011 11 1.29237e+00 2.47587e-01 696 2011 12 1.50529e+00 4.19833e-01 988 2012 1 1.70651e+00 3.13963e-01 654 2012 2 1.79047e+00 4.04806e-01 528 2012 3 1.94371e+00 4.44786e-01 746 2012 4 2.14409e+00 3.13960e-01 368 2012 5 2.66533e+00 4.81908e-01 353 2012 6 nan nan 0 2012 7 1.67855e+00 5.43141e-01 94 2012 8 1.14586e+00 2.18833e-01 201 2012 9 9.07231e-01 3.21309e-01 272 2012 10 7.64420e-01 7.60908e-02 471 2012 11 1.13532e+00 2.40849e-01 678 2012 12 1.25881e+00 1.74245e-01 441 2013 1 1.57229e+00 4.45760e-01 680 2013 2 1.69445e+00 2.36797e-01 624 2013 3 1.63358e+00 3.25767e-01 675 2013 4 2.07400e+00 3.01382e-01 381 2013 5 1.88009e+00 6.10883e-01 406 2013 6 1.88974e+00 3.28092e-01 284 2013 7 1.90195e+00 9.77427e-01 294 2013 8 1.55609e+00 3.16469e-01 418 2013 9 1.71855e+00 9.70601e-01 375 2013 10 1.79312e+00 1.19880e+00 608 2013 11 1.58833e+00 4.59721e-01 168 2013 12 1.47828e+00 4.41785e-01 615 2014 1 1.68205e+00 4.35495e-01 541 2014 2 1.74917e+00 2.10733e-01 582 2014 3 1.78539e+00 3.26731e-01 523 2014 4 1.72695e+00 3.09429e-01 332 2014 5 1.73578e+00 4.18032e-01 446 2014 6 2.42185e+00 4.19948e-01 295 2014 7 2.28367e+00 4.63129e-01 248 2014 8 2.11986e+00 4.37130e-01 306 2014 9 1.62741e+00 2.56832e-01 308 2014 10 1.02850e+00 1.68835e-01 922 2014 11 1.21827e+00 1.39475e-01 608 2014 12 1.36832e+00 4.00108e-01 671 2015 1 1.31611e+00 2.03894e-01 332 2015 2 1.67668e+00 2.94133e-01 685 2015 3 1.53796e+00 3.80425e-01 585 2015 4 1.30292e+00 2.87675e-01 269 2015 5 2.05458e+00 4.88478e-01 555 2015 6 3.02440e+00 1.04837e+00 255 2015 7 1.76266e+00 3.88792e-01 188 2015 8 1.57527e+00 1.28131e+00 180 2015 9 2.81647e+00 1.21325e+00 111 2015 10 1.46945e+00 8.09377e-01 576 2015 11 1.06032e+00 3.36746e-01 530 2015 12 1.26246e+00 3.83657e-01 300 2016 1 1.36140e+00 2.84179e-01 614 2016 2 1.41880e+00 2.32520e-01 880 2016 3 1.80371e+00 3.77426e-01 457 2016 4 1.66953e+00 5.38148e-01 361 2016 5 1.80496e+00 3.41984e-01 426 2016 6 2.39581e+00 2.65845e-01 103 2016 7 1.90615e+00 6.44482e-01 338 2016 8 2.11249e+00 7.95905e-01 228 2016 9 1.90338e+00 6.78860e-01 529 2016 10 1.47768e+00 6.87215e-01 389 2016 11 1.08695e+00 3.28081e-01 632 2016 12 1.58342e+00 3.24235e-01 656 2017 1 1.62572e+00 4.01235e-01 623 2017 2 1.91905e+00 3.39569e-01 1025 2017 3 2.33191e+00 4.21362e-01 765 2017 4 2.32906e+00 4.84578e-01 393 2017 5 2.11136e+00 5.67785e-01 403 2017 6 2.43920e+00 2.80381e-01 128 2017 7 1.83477e+00 5.65805e-01 256 2017 8 2.61326e+00 1.23225e+00 336 2017 9 1.26827e+00 1.00570e+00 320 2017 10 1.53772e+00 1.54521e+00 254 2017 11 1.09662e+00 4.74051e-01 716 2017 12 1.48170e+00 5.39223e-01 646 2018 1 1.58586e+00 1.88533e-01 631 2018 2 1.81954e+00 3.48660e-01 373 2018 3 1.88852e+00 3.96730e-01 899 2018 4 1.79742e+00 3.18088e-01 651 2018 5 2.15062e+00 5.00715e-01 291 2018 6 1.86106e+00 7.02310e-01 311 2018 7 2.14755e+00 9.38094e-01 142 2018 8 2.20033e+00 1.27184e+00 366 2018 9 1.03057e+00 4.79286e-01 480 2018 10 1.62792e+00 1.06042e+00 972 2018 11 1.46917e+00 3.20738e-01 407 2018 12 1.33574e+00 4.66099e-01 539 2019 1 1.58996e+00 9.31430e-01 667 2019 2 1.41094e+00 3.15436e-01 498 2019 3 1.47181e+00 3.85558e-01 664 2019 4 1.88284e+00 2.61436e-01 419 2019 5 2.03922e+00 4.96233e-01 512 2019 6 1.89758e+00 7.61186e-01 223 2019 7 1.98936e+00 6.52355e-01 342 2019 8 3.33350e+00 2.30154e+00 105 2019 9 1.07903e+00 4.10478e-01 272 2019 10 1.70796e+00 1.04718e+00 403 2019 11 1.25063e+00 5.73142e-01 386 2019 12 1.45309e+00 2.79289e-01 191 2020 1 1.45818e+00 2.40012e-01 636 2020 2 1.73733e+00 4.00386e-01 488 2020 3 1.83103e+00 3.62152e-01 662 2020 4 1.43576e+00 2.14022e-01 270 2020 5 1.99586e+00 4.63905e-01 684 2020 6 2.13193e+00 3.61112e-01 310 2020 7 2.00726e+00 1.80667e-01 69 2020 8 1.79060e+00 2.04429e-01 233 2020 9 1.51414e+00 5.82713e-01 256 2020 10 1.38951e+00 4.72336e-01 194 2020 11 1.15822e+00 4.60534e-01 586 2020 12 9.74873e-01 2.36201e-01 353 2021 1 1.01642e+00 3.39116e-01 311 2021 2 1.61787e+00 4.64372e-01 595 2021 3 1.89039e+00 2.84588e-01 559 2021 4 1.79761e+00 6.17873e-01 579 2021 5 2.08415e+00 5.29522e-01 693 2021 6 2.40261e+00 3.45589e-01 240 2021 7 1.60158e+00 6.22463e-01 116 2021 8 2.35315e+00 1.63260e+00 191 2021 9 1.46545e+00 1.01696e+00 395 2021 10 1.43502e+00 8.82154e-01 570 2021 11 1.06732e+00 3.15020e-01 425 2021 12 1.19205e+00 3.33771e-01 813 2022 1 1.62439e+00 2.58473e-01 699 2022 2 1.69020e+00 4.47125e-01 796 2022 3 1.84434e+00 4.05754e-01 653 2022 4 2.16109e+00 5.77107e-01 19 2022 5 2.41462e+00 6.00789e-01 556 2022 6 2.00282e+00 4.84538e-01 183 2022 7 2.15665e+00 2.09342e-01 193 2022 8 2.15581e+00 9.53585e-01 284 2022 9 2.00854e+00 7.90003e-01 406 2022 10 2.30938e+00 2.10491e+00 488 2022 11 1.71732e+00 6.74220e-01 474 2022 12 1.26726e+00 1.64945e-01 516 2023 1 1.28596e+00 3.16062e-01 850 2023 2 1.77843e+00 4.49479e-01 879 2023 3 2.21195e+00 4.80204e-01 745 2023 4 2.63153e+00 4.53658e-01 450 2023 5 2.26987e+00 2.45488e-01 406 2023 6 1.92653e+00 1.72302e-01 145 2023 7 2.05869e+00 2.46342e-01 204 2023 8 2.15368e+00 5.56007e-01 359 2023 9 1.90666e+00 9.51098e-01 665 2023 10 1.75146e+00 6.79345e-01 591 2023 11 1.69040e+00 4.13620e-01 722 2023 12 2.12596e+00 4.09344e-01 259 2024 1 1.48959e+00 4.33834e-01 202 2024 2 2.32093e+00 5.11158e-01 721 2024 3 1.84634e+00 3.13129e-01 424 2024 4 nan nan 0