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 3.39579e+00 8.90785e-01 64 2002 8 2.95814e+01 2.98496e+01 95 2002 9 7.21648e-01 6.82257e-01 33 2002 10 6.35613e+00 4.16678e+00 421 2002 11 4.33265e+00 3.52952e+00 556 2002 12 2.85949e+00 2.94863e+00 633 2003 1 4.90947e+00 4.91226e+00 979 2003 2 1.20925e+01 4.47025e+00 510 2003 3 6.36255e+00 5.56303e+00 234 2003 4 9.08342e+00 7.24065e+00 342 2003 5 6.69827e+00 5.59592e+00 406 2003 6 6.16736e+00 2.83818e+00 88 2003 7 2.93826e+01 6.55569e-01 29 2003 8 1.26294e+01 2.18433e+01 86 2003 9 8.86482e+00 9.68979e+00 192 2003 10 8.14927e+00 6.92981e+00 540 2003 11 5.31646e+00 5.66902e+00 671 2003 12 2.90887e+00 3.36750e+00 553 2004 1 6.18532e+00 4.08899e+00 724 2004 2 5.68737e+00 4.51208e+00 564 2004 3 1.61164e+01 6.37336e+00 596 2004 4 2.18673e+01 6.03496e+00 254 2004 5 2.06529e+01 3.86322e+00 399 2004 6 1.97563e+01 8.15650e+00 405 2004 7 9.37810e+00 3.08867e+00 160 2004 8 1.00800e+00 1.60610e+00 215 2004 9 1.63377e+00 1.76825e+00 165 2004 10 3.01608e+00 1.48412e+00 326 2004 11 5.20616e+00 3.95121e+00 702 2004 12 9.63813e-01 2.30241e+00 376 2005 1 4.03377e+00 5.64098e+00 578 2005 2 5.56638e-01 8.11108e-01 435 2005 3 9.95352e-01 1.34888e+00 239 2005 4 7.32101e+00 2.71415e+00 282 2005 5 1.17030e+01 4.01297e+00 236 2005 6 7.22403e+00 6.51751e+00 195 2005 7 5.97021e+00 6.59972e+00 214 2005 8 5.85215e+00 4.48942e+00 193 2005 9 1.58734e+00 9.85393e-01 128 2005 10 3.27059e+00 3.48903e+00 404 2005 11 2.39102e+00 3.74988e+00 375 2005 12 8.10113e-01 1.00535e+00 679 2006 1 9.93214e-01 1.49120e+00 316 2006 2 7.86724e+00 7.14084e+00 563 2006 3 1.62857e+01 5.33477e+00 796 2006 4 2.54300e+01 5.55904e+00 374 2006 5 2.35899e+01 3.71866e+00 399 2006 6 1.84359e+01 4.53191e+00 361 2006 7 1.33210e+01 6.87702e+00 158 2006 8 9.64853e-01 1.12174e+00 97 2006 9 1.28855e+00 7.10186e+00 145 2006 10 1.76312e+00 1.33250e+00 403 2006 11 2.19626e+00 2.85764e+00 442 2006 12 9.01856e+00 7.59188e+00 190 2007 1 7.05075e+00 5.53846e+00 547 2007 2 1.26469e+01 6.00978e+00 604 2007 3 1.61722e+01 7.61019e+00 431 2007 4 2.25761e+01 4.95030e+00 272 2007 5 2.09682e+01 3.80750e+00 262 2007 6 2.01918e+01 2.60806e+00 103 2007 7 1.91807e+01 2.65156e+00 282 2007 8 9.26109e+00 2.60437e+00 188 2007 9 5.94313e+00 6.25184e+00 343 2007 10 2.58754e+01 5.92888e+00 195 2007 11 9.57470e+00 8.27896e+00 678 2007 12 1.16223e+01 8.31907e+00 629 2008 1 1.58849e+01 7.53450e+00 513 2008 2 2.15168e+01 8.97877e+00 634 2008 3 5.56664e+00 4.48811e+00 301 2008 4 2.11331e+01 4.43217e+00 445 2008 5 1.78229e+01 4.84563e+00 346 2008 6 1.84731e+01 5.64190e+00 405 2008 7 1.53915e+01 6.95673e+00 98 2008 8 1.15155e+01 3.23104e+00 236 2008 9 5.46235e+00 4.35595e+00 175 2008 10 9.65044e+00 7.07383e+00 574 2008 11 6.67056e+00 4.60536e+00 773 2008 12 5.37941e+00 4.34457e+00 1108 2009 1 5.96502e+00 4.25412e+00 752 2009 2 1.01623e+01 7.15929e+00 555 2009 3 1.54869e+01 4.45658e+00 599 2009 4 1.41643e+01 7.02451e+00 192 2009 5 1.72962e+01 4.10969e+00 316 2009 6 1.24937e+01 3.62595e+00 158 2009 7 7.33265e+00 4.41513e+00 343 2009 8 7.81923e+00 6.56980e+00 158 2009 9 1.01714e+01 1.22967e+01 244 2009 10 9.00801e+00 1.35083e+01 663 2009 11 4.90445e+00 2.63447e+00 434 2009 12 8.46941e+00 5.65424e+00 299 2010 1 7.19404e-01 9.38201e-01 441 2010 2 5.06629e-01 5.78652e-01 381 2010 3 6.73833e+00 6.08137e+00 291 2010 4 1.42544e+01 3.90163e+00 206 2010 5 1.69707e+01 7.57703e+00 437 2010 6 1.89314e+01 4.09507e+00 245 2010 7 1.52557e+01 7.68267e+00 232 2010 8 9.49992e+00 5.03173e+00 240 2010 9 1.00067e+01 5.91336e+00 153 2010 10 1.26528e+01 4.50315e+00 883 2010 11 1.00687e+01 4.77553e+00 764 2010 12 3.28191e+00 3.64288e+00 610 2011 1 6.34431e+00 6.21885e+00 605 2011 2 1.44703e+01 7.10450e+00 746 2011 3 2.33023e+01 6.42476e+00 537 2011 4 1.80598e+01 6.80520e+00 540 2011 5 1.75967e+01 6.00957e+00 374 2011 6 1.72528e+01 3.94029e+00 216 2011 7 1.42121e+01 4.50693e+00 74 2011 8 1.26879e+01 2.75962e+00 100 2011 9 4.77571e+00 6.93842e+00 291 2011 10 5.14911e+00 4.44708e+00 564 2011 11 8.52382e+00 5.86373e+00 536 2011 12 8.54395e+00 7.41560e+00 730 2012 1 9.33015e+00 7.74958e+00 745 2012 2 1.58762e+01 7.66401e+00 513 2012 3 2.00216e+01 7.34404e+00 285 2012 4 2.21622e+01 4.52867e+00 402 2012 5 1.87930e+01 4.14613e+00 469 2012 6 nan nan 0 2012 7 4.56286e+00 1.90055e+00 128 2012 8 6.54485e+00 1.90075e+00 177 2012 9 1.07007e+01 1.36618e+01 193 2012 10 3.47548e+00 3.08473e+00 476 2012 11 5.26733e+00 3.93605e+00 558 2012 12 5.55885e+00 3.52882e+00 329 2013 1 2.98711e+00 1.85943e+00 549 2013 2 7.25516e+00 4.80350e+00 733 2013 3 5.20696e+00 3.24420e+00 515 2013 4 1.73665e+01 8.79562e+00 245 2013 5 1.76102e+01 5.41420e+00 440 2013 6 1.36089e+01 5.01203e+00 379 2013 7 5.40091e+00 5.19419e+00 112 2013 8 2.29438e+00 2.06797e+00 72 2013 9 1.50235e+01 1.38498e+01 271 2013 10 9.90152e+00 7.37142e+00 390 2013 11 3.22560e+00 2.45986e+00 183 2013 12 1.07530e+01 4.32101e+00 658 2014 1 7.40214e+00 6.58522e+00 548 2014 2 7.79852e+00 5.12044e+00 655 2014 3 7.34193e+00 6.07802e+00 478 2014 4 1.52379e+01 6.24284e+00 278 2014 5 1.84877e+01 4.28194e+00 287 2014 6 2.04818e+01 2.63965e+00 111 2014 7 1.13113e+01 2.95259e+00 207 2014 8 1.23644e+01 5.36213e+00 151 2014 9 nan nan 0 2014 10 3.03132e+00 2.81864e+00 701 2014 11 5.10809e+00 4.48516e+00 602 2014 12 8.45492e+00 6.93678e+00 717 2015 1 8.15718e+00 7.03246e+00 511 2015 2 2.85185e+00 4.08232e+00 542 2015 3 1.48948e+01 5.65529e+00 622 2015 4 2.31657e+01 8.08548e+00 233 2015 5 2.04911e+01 3.63646e+00 429 2015 6 1.86141e+01 5.16746e+00 313 2015 7 1.42474e+01 1.71520e+00 192 2015 8 4.86555e+00 4.11556e+00 177 2015 9 6.35376e+00 7.05067e+00 261 2015 10 1.82023e+00 2.89286e+00 334 2015 11 5.29056e+00 6.30400e+00 392 2015 12 4.67271e+00 3.77224e+00 359 2016 1 2.05570e+00 2.24961e+00 291 2016 2 7.62703e+00 8.43748e+00 298 2016 3 6.34823e+00 2.66024e+00 295 2016 4 1.13828e+01 7.19671e+00 417 2016 5 1.58448e+01 7.77979e+00 366 2016 6 1.80711e+01 8.67282e+00 430 2016 7 9.63451e+00 6.63139e+00 363 2016 8 2.64514e+00 2.48600e+00 209 2016 9 9.14642e+00 1.04244e+01 514 2016 10 3.90145e+00 1.26232e+01 361 2016 11 5.69148e+00 3.77171e+00 566 2016 12 9.06814e+00 5.90762e+00 668 2017 1 9.88669e+00 6.11581e+00 436 2017 2 9.01496e+00 4.75640e+00 899 2017 3 1.61929e+01 5.64333e+00 794 2017 4 1.39418e+01 6.30066e+00 434 2017 5 1.07779e+01 7.35507e+00 373 2017 6 7.67574e+00 6.70794e+00 185 2017 7 9.01198e+00 4.75533e+00 127 2017 8 2.67653e+00 2.51020e+00 267 2017 9 1.18120e+00 5.19454e+00 258 2017 10 4.90412e+00 7.15803e+00 291 2017 11 5.23065e+00 3.65057e+00 671 2017 12 8.37628e+00 5.69585e+00 659 2018 1 3.96678e+00 4.17028e+00 580 2018 2 8.49321e+00 4.65870e+00 662 2018 3 7.41826e+00 5.69246e+00 921 2018 4 1.62909e+01 4.48296e+00 641 2018 5 1.83102e+01 3.63596e+00 192 2018 6 9.19836e+00 4.90967e+00 292 2018 7 1.07404e+01 1.15907e+01 347 2018 8 3.25918e+00 2.84473e+00 218 2018 9 3.33676e-04 9.63028e-04 120 2018 10 2.55578e+00 5.99671e+00 329 2018 11 6.59576e-01 6.89668e-01 136 2018 12 1.78718e+00 2.44300e+00 328 2019 1 2.91843e+00 3.47598e+00 425 2019 2 1.22242e+01 6.21971e+00 387 2019 3 1.07887e+01 7.66608e+00 690 2019 4 1.73323e+01 6.69400e+00 254 2019 5 1.94104e+01 4.42101e+00 343 2019 6 1.91465e+01 4.60456e+00 93 2019 7 1.23396e+01 5.54808e+00 342 2019 8 1.26526e+01 8.27332e+00 52 2019 9 9.57295e+00 3.01792e+00 307 2019 10 9.25615e+00 7.94650e+00 418 2019 11 6.17149e+00 3.47191e+00 346 2019 12 3.25226e+00 2.21588e+00 119 2020 1 6.89156e+00 6.68987e+00 624 2020 2 1.69099e+01 7.12111e+00 363 2020 3 1.48185e+01 1.02522e+01 385 2020 4 1.61330e+01 7.74515e+00 256 2020 5 2.15617e+01 4.18584e+00 552 2020 6 8.87591e+00 5.06067e+00 322 2020 7 9.18895e+00 5.48627e+00 130 2020 8 1.08602e+01 3.02918e+00 192 2020 9 9.57517e+00 1.14710e+01 207 2020 10 4.73220e-01 5.10375e-01 180 2020 11 2.97025e+00 4.85920e+00 357 2020 12 4.25242e+00 4.08046e+00 642 2021 1 7.83786e+00 5.66154e+00 624 2021 2 4.36451e+00 3.44928e+00 410 2021 3 1.63672e+01 6.20519e+00 359 2021 4 1.56946e+01 5.30566e+00 597 2021 5 8.08384e+00 4.60774e+00 444 2021 6 1.70611e+01 0.00000e+00 2 2021 7 8.50474e+00 5.14437e+00 293 2021 8 3.43891e+00 6.02471e+00 109 2021 9 2.62042e+00 2.94683e+00 339 2021 10 1.30342e+00 8.87177e+00 198 2021 11 1.93148e+00 1.73104e+00 542 2021 12 6.30854e+00 5.57416e+00 586 2022 1 6.08954e+00 3.74121e+00 351 2022 2 8.20113e+00 5.51476e+00 697 2022 3 1.62838e+01 6.70028e+00 725 2022 4 2.60082e+01 2.93127e+00 49 2022 5 2.18774e+01 5.10240e+00 506 2022 6 2.23526e+01 5.66033e+00 191 2022 7 1.77864e+01 6.11442e+00 368 2022 8 6.70050e+00 5.42695e+00 303 2022 9 2.91561e+00 3.46082e+00 360 2022 10 3.02482e+00 3.78771e+00 530 2022 11 8.27234e-01 1.57947e+00 372 2022 12 9.03049e+00 7.54610e+00 499 2023 1 5.98345e+00 4.90588e+00 947 2023 2 4.72294e+00 5.16603e+00 1059 2023 3 1.05045e+01 7.08012e+00 915 2023 4 1.54929e+01 6.35962e+00 388 2023 5 2.14477e+01 5.93616e+00 511 2023 6 2.16825e+01 6.49007e+00 327 2023 7 1.14945e+01 5.28258e+00 309 2023 8 8.33189e+00 1.02454e+01 233 2023 9 7.02909e+00 3.16111e+00 514 2023 10 7.45941e+00 1.40788e+01 465 2023 11 7.11982e+00 5.13393e+00 616 2023 12 6.33872e+00 6.00962e+00 420 2024 1 6.02321e+00 7.53591e+00 360 2024 2 1.05010e+01 6.41233e+00 770 2024 3 8.72285e+00 5.72893e+00 404 2024 4 1.88278e+01 1.27834e+00 22