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 4.36607e+01 4.66649e+00 200 2002 8 4.43698e+01 8.23462e+00 384 2002 9 4.04412e+01 5.09072e+00 247 2002 10 3.61613e+01 5.81547e+00 562 2002 11 3.36591e+01 7.71602e+00 733 2002 12 3.41520e+01 1.11525e+01 636 2003 1 3.09494e+01 9.62210e+00 807 2003 2 3.60895e+01 1.00788e+01 572 2003 3 nan nan 0 2003 4 8.87234e-01 2.00927e+00 41 2003 5 2.45438e+01 2.44830e+01 167 2003 6 7.72047e+00 7.36957e+00 49 2003 7 5.72114e-03 1.69760e-02 11 2003 8 1.62748e+01 7.25083e+00 128 2003 9 2.52016e+01 1.24771e+01 271 2003 10 2.75752e+01 9.57963e+00 692 2003 11 2.87302e+01 6.89026e+00 848 2003 12 3.47471e+01 9.59552e+00 727 2004 1 3.26752e+01 4.64496e+00 759 2004 2 3.49048e+01 7.77785e+00 384 2004 3 2.25491e+01 1.87570e+01 794 2004 4 3.42157e+01 7.35703e+00 307 2004 5 4.10407e+01 7.89353e+00 552 2004 6 4.14131e+01 1.30695e+01 398 2004 7 3.26796e+01 4.86880e+00 270 2004 8 3.45911e+01 1.13617e+01 330 2004 9 2.01458e+01 5.15406e+00 68 2004 10 nan nan 0 2004 11 2.41714e+01 2.93894e+00 7 2004 12 2.11197e+01 1.25548e+01 275 2005 1 1.72318e+01 1.23743e+01 442 2005 2 1.43917e+01 8.87557e+00 422 2005 3 2.45717e+01 9.50121e+00 320 2005 4 2.14714e+01 1.26441e+01 204 2005 5 2.33430e+01 1.23947e+01 63 2005 6 1.35003e+01 8.58829e+00 187 2005 7 1.30367e-03 1.30367e-03 2 2005 8 1.57264e+01 1.17126e+01 196 2005 9 2.30196e+01 9.25831e+00 257 2005 10 3.27713e+01 5.52555e+00 889 2005 11 3.44267e+01 6.70287e+00 856 2005 12 2.57453e+01 8.32521e+00 660 2006 1 2.40081e+01 2.10859e+01 414 2006 2 1.59921e+01 1.18007e+01 285 2006 3 1.74434e+01 1.06295e+01 826 2006 4 3.12422e+01 1.09199e+01 378 2006 5 3.72800e+01 8.86102e+00 416 2006 6 3.24188e+01 7.62370e+00 235 2006 7 3.00993e+01 5.85843e+00 178 2006 8 3.46492e+01 4.45433e+00 254 2006 9 3.66454e+01 6.30017e+00 704 2006 10 3.85788e+01 1.26831e+01 731 2006 11 3.68310e+01 1.10329e+01 799 2006 12 4.52320e+01 5.48449e+00 387 2007 1 3.75380e+01 6.06893e+00 368 2007 2 3.98021e+01 1.18362e+01 687 2007 3 3.97955e+01 9.10821e+00 897 2007 4 4.14982e+01 7.89302e+00 531 2007 5 3.74684e+01 1.03252e+01 145 2007 6 4.10427e+01 7.22969e+00 253 2007 7 3.12428e+01 9.63256e+00 360 2007 8 3.56168e+01 3.93730e+00 329 2007 9 3.68379e+01 9.66262e+00 393 2007 10 3.92925e+01 7.11460e+00 537 2007 11 4.19833e+01 8.49298e+00 906 2007 12 4.14157e+01 5.67018e+00 586 2008 1 3.48100e+01 1.59406e+01 506 2008 2 3.35478e+01 5.16292e+00 704 2008 3 2.94238e+01 1.29102e+01 324 2008 4 2.01684e+01 1.70310e+01 298 2008 5 1.69365e+01 1.09732e+01 338 2008 6 3.16738e+01 7.00429e+00 330 2008 7 4.78729e+01 7.15920e+00 368 2008 8 2.98268e+01 1.18243e+01 115 2008 9 2.85184e+01 7.36513e+00 195 2008 10 2.29031e+01 9.41423e+00 713 2008 11 3.72703e+01 1.05102e+01 1017 2008 12 2.15351e+01 8.05659e+00 752 2009 1 2.77610e+01 7.40186e+00 654 2009 2 3.50993e+01 8.12101e+00 884 2009 3 3.68379e+01 9.20850e+00 794 2009 4 2.30044e+01 1.46058e+01 244 2009 5 1.70885e+01 1.09562e+01 116 2009 6 4.62151e+01 9.03540e+00 150 2009 7 4.58575e+00 6.28475e+00 61 2009 8 2.52581e+01 8.24466e+00 453 2009 9 3.20163e+01 8.11821e+00 457 2009 10 3.72741e+01 4.49009e+00 774 2009 11 4.08044e+01 9.28474e+00 604 2009 12 3.83522e+01 7.47822e+00 262 2010 1 2.98994e+01 1.26262e+01 819 2010 2 1.99919e+01 1.04012e+01 696 2010 3 1.44921e+01 7.69161e+00 622 2010 4 9.75665e+00 1.21032e+01 198 2010 5 2.23716e+01 1.44093e+01 290 2010 6 3.44406e+01 7.38196e+00 508 2010 7 2.90275e+01 9.17624e+00 303 2010 8 2.58256e+01 1.15568e+01 174 2010 9 2.87825e+01 9.29892e+00 438 2010 10 3.59851e+01 8.90541e+00 1515 2010 11 3.77792e+01 6.52792e+00 1147 2010 12 3.83907e+01 8.73687e+00 759 2011 1 3.66393e+01 1.02235e+01 525 2011 2 4.09146e+01 1.17062e+01 798 2011 3 3.20370e+01 9.02867e+00 842 2011 4 3.57485e+01 6.44707e+00 570 2011 5 4.44267e+01 1.37256e+01 609 2011 6 4.60725e+01 3.15952e+00 256 2011 7 4.54310e+01 5.38859e+00 326 2011 8 4.55285e+01 1.15488e+01 302 2011 9 4.26341e+01 5.04718e+00 637 2011 10 3.99412e+01 1.05394e+01 1003 2011 11 4.25622e+01 8.79637e+00 1023 2011 12 4.24747e+01 8.45934e+00 704 2012 1 4.01469e+01 1.26830e+01 949 2012 2 4.29017e+01 9.50070e+00 192 2012 3 3.77259e+01 1.09309e+01 674 2012 4 4.12454e+01 1.29017e+01 778 2012 5 4.88475e+01 4.29396e+00 306 2012 6 2.54965e+01 1.44366e+01 59 2012 7 9.64234e+00 4.88651e+00 5 2012 8 1.94345e+00 4.52167e+00 48 2012 9 2.97451e+01 1.33764e+01 256 2012 10 1.31256e+01 1.09807e+01 331 2012 11 3.61534e+01 5.81068e+00 722 2012 12 3.32151e+01 3.59396e+00 405 2013 1 3.46559e+01 1.18883e+01 610 2013 2 3.23281e+01 2.82402e+00 379 2013 3 3.31571e+01 1.03264e+01 564 2013 4 4.24759e+00 5.91857e+00 74 2013 5 2.09975e+01 1.63498e+01 371 2013 6 1.12916e+01 9.81286e+00 239 2013 7 2.25940e+01 8.38327e+00 56 2013 8 7.35429e+00 8.28753e+00 105 2013 9 2.25803e+01 6.08532e+00 43 2013 10 2.89405e+01 1.20546e+01 711 2013 11 2.49761e+01 6.02323e+00 458 2013 12 3.50301e+01 3.38472e+00 605 2014 1 2.74116e+01 6.49581e+00 298 2014 2 2.06780e+01 1.05782e+01 472 2014 3 2.52172e+01 7.21101e+00 441 2014 4 1.44296e+01 4.80684e+00 102 2014 5 3.64100e+01 8.43405e+00 61 2014 6 2.99363e+01 2.45883e+00 104 2014 7 2.06708e+01 1.11137e+01 406 2014 8 3.30194e+01 5.38699e+00 292 2014 9 4.60103e+01 1.09056e+01 43 2014 10 2.72551e+01 8.34368e+00 1150 2014 11 3.40798e+01 9.81025e+00 816 2014 12 4.30884e+01 8.92759e+00 452 2015 1 2.57354e+01 7.76594e+00 642 2015 2 2.71507e+01 1.56062e+01 502 2015 3 3.17141e+01 2.37309e+01 347 2015 4 1.07349e+01 7.04519e+00 106 2015 5 2.71271e+01 8.20916e+00 430 2015 6 3.45683e+01 5.50357e+00 256 2015 7 3.56873e+01 6.86917e+00 176 2015 8 1.52365e+00 2.62855e+00 62 2015 9 1.97697e+01 1.24381e+01 193 2015 10 3.18223e+01 6.28871e+00 546 2015 11 2.55600e+01 1.03166e+01 515 2015 12 3.11050e+01 1.08078e+01 554 2016 1 2.75500e+01 7.26837e+00 499 2016 2 2.52020e+01 1.77168e+01 748 2016 3 1.76023e+01 9.18022e+00 487 2016 4 1.50513e+01 7.72480e+00 256 2016 5 2.34790e+01 1.09675e+01 503 2016 6 3.58239e+01 6.94268e+00 576 2016 7 3.45274e+01 5.36150e+00 646 2016 8 3.27829e+01 9.50584e+00 335 2016 9 2.48379e+01 9.77232e+00 452 2016 10 2.95197e+01 9.82344e+00 784 2016 11 3.71250e+01 7.53691e+00 852 2016 12 4.12076e+01 1.08875e+01 781 2017 1 3.35145e+01 1.20032e+01 519 2017 2 1.71422e+01 8.17625e+00 849 2017 3 3.05358e+01 1.14301e+01 798 2017 4 3.62205e+01 1.02344e+01 661 2017 5 3.83451e+01 6.68608e+00 389 2017 6 3.59251e+01 5.56447e+00 193 2017 7 2.13594e+01 5.60007e+00 80 2017 8 2.31210e+01 9.22093e+00 363 2017 9 1.92431e+01 1.11898e+01 236 2017 10 1.51031e+01 9.00863e+00 74 2017 11 2.25845e+01 6.80592e+00 1033 2017 12 3.18019e+01 5.90967e+00 469 2018 1 3.22528e+01 7.05198e+00 575 2018 2 1.99779e+01 1.07290e+01 510 2018 3 2.81422e+01 1.16026e+01 700 2018 4 2.83715e+01 8.88767e+00 533 2018 5 2.85272e+01 9.57793e+00 301 2018 6 2.85567e+01 8.07339e+00 256 2018 7 3.85639e+01 1.63427e+01 6 2018 8 nan nan 0 2018 9 4.00082e+01 2.41842e+01 637 2018 10 2.54268e+01 7.43821e+00 928 2018 11 2.94825e+01 5.58803e+00 221 2018 12 2.26316e+01 1.21972e+01 379 2019 1 1.39186e+01 8.89050e+00 98 2019 2 4.13760e+00 5.18443e+00 51 2019 3 1.44432e+01 8.46949e+00 567 2019 4 2.02422e+01 6.63508e+00 384 2019 5 3.33888e+01 6.47050e+00 640 2019 6 3.82754e+01 6.93556e+00 134 2019 7 4.06249e+01 1.54470e+01 138 2019 8 2.16683e+01 9.06714e+00 176 2019 9 2.92722e+01 7.89743e+00 462 2019 10 2.99859e+01 1.01933e+01 536 2019 11 3.08964e+01 7.58201e+00 568 2019 12 2.53951e+01 8.58949e+00 387 2020 1 2.29451e+01 1.11096e+01 534 2020 2 2.34671e+01 1.01589e+01 530 2020 3 1.84926e+01 1.22750e+01 500 2020 4 1.37140e+01 8.20154e+00 244 2020 5 2.00268e+01 8.22355e+00 538 2020 6 2.18519e+01 1.85294e+01 215 2020 7 1.68020e+01 1.16351e+01 58 2020 8 1.57449e+01 3.25619e+00 220 2020 9 2.19695e+01 1.28220e+01 87 2020 10 2.03787e+01 9.15336e+00 417 2020 11 2.60124e+01 6.21292e+00 648 2020 12 2.74945e+01 9.81745e+00 487 2021 1 2.81058e+01 6.16587e+00 155 2021 2 1.58595e+01 9.05876e+00 355 2021 3 1.87285e+01 1.36095e+01 199 2021 4 1.03905e+01 1.17183e+01 229 2021 5 2.12386e+01 8.00803e+00 409 2021 6 3.03611e+01 7.27526e+00 180 2021 7 2.76211e+01 3.22978e+01 129 2021 8 6.98388e+01 3.38460e+01 17 2021 9 7.34496e+01 4.00003e+00 12 2021 10 3.28009e+01 2.03766e+01 477 2021 11 2.44136e+01 8.20030e+00 669 2021 12 2.33249e+01 1.13633e+01 575 2022 1 1.34032e+01 7.27659e+00 462 2022 2 2.29473e+01 9.14400e+00 757 2022 3 2.23563e+01 1.02612e+01 616 2022 4 nan nan 0 2022 5 2.67177e+01 8.63520e+00 322 2022 6 3.42673e+01 9.06612e+00 326 2022 7 3.59494e+01 1.34774e+01 268 2022 8 2.62850e+01 2.32290e+01 245 2022 9 2.95591e+01 9.93729e+00 214 2022 10 4.40490e+01 8.66554e+00 1021 2022 11 2.52842e+01 6.18407e+00 289 2022 12 3.20217e+01 1.25754e+01 639 2023 1 3.80753e+01 5.29940e+00 732 2023 2 2.88645e+01 1.07959e+01 507 2023 3 2.00880e+01 1.18460e+01 388 2023 4 2.62200e+01 1.63444e+01 461 2023 5 3.52712e+01 3.43647e+00 128 2023 6 3.59555e+01 8.24775e+00 284 2023 7 3.08881e+01 1.59164e+01 530 2023 8 2.63750e+01 1.44582e+01 248 2023 9 1.43381e+01 8.50147e+00 296 2023 10 2.86422e+01 1.35340e+01 720 2023 11 3.29772e+01 8.16976e+00 609 2023 12 2.06378e+01 8.76182e+00 267 2024 1 2.33598e+01 1.08652e+01 64 2024 2 1.81593e+01 9.97979e+00 474 2024 3 1.79650e+01 8.60285e+00 328 2024 4 nan nan 0