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 1.37909e+01 2.73792e+00 113 2002 8 1.76742e+01 1.77987e+00 64 2002 9 1.59626e+01 5.08499e+00 260 2002 10 9.91524e+00 3.77027e+00 562 2002 11 1.27226e+01 3.48003e+00 709 2002 12 9.82132e+00 2.26114e+00 509 2003 1 1.48849e+01 3.49327e+00 664 2003 2 1.50456e+01 3.33530e+00 488 2003 3 1.39525e+01 4.20476e+00 880 2003 4 1.28794e+01 3.65312e+00 221 2003 5 1.29186e+01 9.41658e+00 181 2003 6 4.97306e+00 2.51217e+00 66 2003 7 1.52847e+01 1.05446e+00 71 2003 8 1.39544e+01 3.07264e+00 267 2003 9 1.20748e+01 2.43942e+00 310 2003 10 1.59625e+01 4.06523e+00 398 2003 11 1.51211e+01 3.91205e+00 368 2003 12 1.38162e+01 2.63861e+00 554 2004 1 9.87402e+00 2.43188e+00 546 2004 2 1.26987e+01 2.86919e+00 605 2004 3 1.72702e+01 3.36158e+00 532 2004 4 1.89263e+01 5.78281e+00 576 2004 5 8.79157e+00 1.89736e+00 64 2004 6 1.14064e+01 3.67284e+00 241 2004 7 1.26827e+01 2.40371e+00 220 2004 8 9.36436e+00 4.22767e+00 194 2004 9 1.07034e+01 3.09129e+00 302 2004 10 1.18182e+01 3.40874e+00 324 2004 11 1.24064e+01 2.93234e+00 377 2004 12 1.10599e+01 2.18825e+00 205 2005 1 1.39774e+01 3.65085e+00 397 2005 2 1.68297e+01 4.04246e+00 768 2005 3 1.79252e+01 4.38440e+00 637 2005 4 1.70605e+01 4.98122e+00 395 2005 5 1.74946e+01 1.92426e+00 138 2005 6 1.19319e+01 1.87744e+00 64 2005 7 1.29018e+01 1.95355e+00 155 2005 8 1.08232e+01 2.69393e+00 226 2005 9 1.61868e+01 3.68018e+00 445 2005 10 1.06837e+01 2.07694e+00 74 2005 11 1.30680e+01 3.70326e+00 538 2005 12 1.45670e+01 3.15540e+00 598 2006 1 1.27603e+01 2.95344e+00 291 2006 2 1.27738e+01 3.32992e+00 625 2006 3 1.63608e+01 4.41631e+00 538 2006 4 1.84867e+01 3.70175e+00 266 2006 5 1.59426e+01 3.67746e+00 475 2006 6 1.81248e+01 3.52786e+00 72 2006 7 9.88118e+00 1.90616e+00 223 2006 8 1.62324e+01 5.65552e+00 256 2006 9 1.07630e+01 2.93601e+00 396 2006 10 1.31387e+01 6.35079e+00 220 2006 11 1.36794e+01 2.82783e+00 795 2006 12 1.13260e+01 3.42652e+00 296 2007 1 1.55780e+01 3.30208e+00 834 2007 2 1.60369e+01 4.76101e+00 505 2007 3 1.69302e+01 4.72983e+00 264 2007 4 1.47102e+01 5.51326e+00 297 2007 5 1.69630e+01 5.52761e+00 148 2007 6 9.06275e+00 2.16594e+00 222 2007 7 1.37497e+01 4.74665e+00 179 2007 8 1.55791e+01 2.88663e+00 204 2007 9 1.62312e+01 3.18182e+00 219 2007 10 1.55389e+01 5.59672e+00 190 2007 11 1.40377e+01 3.33285e+00 482 2007 12 1.32142e+01 3.16395e+00 821 2008 1 1.33573e+01 3.57191e+00 558 2008 2 1.39351e+01 4.00751e+00 495 2008 3 1.58086e+01 3.80734e+00 362 2008 4 1.26326e+01 3.32762e+00 128 2008 5 1.28383e+01 3.85302e+00 320 2008 6 8.30348e+00 8.02150e-01 29 2008 7 1.70482e+01 2.64090e+00 93 2008 8 1.90987e+01 2.64922e+00 137 2008 9 1.51866e+01 4.55653e+00 177 2008 10 1.58991e+01 4.00503e+00 457 2008 11 1.38003e+01 3.09026e+00 535 2008 12 1.47148e+01 3.16149e+00 623 2009 1 1.49683e+01 3.40248e+00 656 2009 2 1.51449e+01 3.55358e+00 550 2009 3 1.88971e+01 3.83563e+00 526 2009 4 1.05033e+01 5.77670e+00 357 2009 5 1.27599e+01 9.33428e-01 64 2009 6 nan nan 0 2009 7 1.06930e+01 1.97497e+00 88 2009 8 1.62589e+01 1.43168e+00 64 2009 9 1.06093e+01 3.04730e+00 353 2009 10 1.47315e+01 3.99860e+00 471 2009 11 1.41161e+01 3.07671e+00 563 2009 12 1.03173e+01 3.62209e+00 203 2010 1 1.09437e+01 2.63178e+00 501 2010 2 1.65463e+01 5.37961e+00 411 2010 3 1.72164e+01 4.13380e+00 403 2010 4 1.39413e+01 2.85701e+00 121 2010 5 1.02192e+01 2.04727e+00 118 2010 6 1.18879e+01 4.10821e+00 233 2010 7 2.86562e+00 5.78125e-01 90 2010 8 5.17539e+00 1.36720e+00 307 2010 9 1.32545e+01 3.21406e+00 214 2010 10 1.38040e+01 4.23094e+00 508 2010 11 8.74468e+00 1.37007e+00 242 2010 12 1.17413e+01 3.05426e+00 387 2011 1 1.35293e+01 2.38801e+00 669 2011 2 1.63091e+01 4.02208e+00 568 2011 3 1.65401e+01 3.64073e+00 359 2011 4 1.43626e+01 4.87374e+00 354 2011 5 1.04236e+01 2.10009e+00 66 2011 6 1.16750e+01 1.47318e+00 14 2011 7 8.95365e+00 1.70083e+00 52 2011 8 1.08138e+01 2.08671e+00 128 2011 9 1.15728e+01 4.12581e+00 309 2011 10 1.18698e+01 1.87332e+00 209 2011 11 9.93767e+00 2.33169e+00 493 2011 12 1.20588e+01 3.60880e+00 734 2012 1 1.48602e+01 3.39359e+00 615 2012 2 1.50020e+01 6.21940e+00 566 2012 3 1.47754e+01 4.15821e+00 93 2012 4 1.57797e+01 2.67527e+00 211 2012 5 1.47922e+01 3.06116e+00 187 2012 6 1.17407e+01 3.14554e+00 195 2012 7 9.76833e+00 1.14529e+00 15 2012 8 1.38730e+01 3.47423e+00 64 2012 9 1.39651e+01 3.44613e+00 442 2012 10 1.39706e+01 2.92430e+00 286 2012 11 1.46199e+01 3.41135e+00 579 2012 12 1.31548e+01 2.68307e+00 431 2013 1 1.53606e+01 4.42219e+00 414 2013 2 1.63626e+01 3.62635e+00 839 2013 3 1.68335e+01 4.08760e+00 558 2013 4 1.53851e+01 3.80442e+00 224 2013 5 1.20402e+01 3.36704e+00 115 2013 6 nan nan 0 2013 7 9.48181e+00 2.12646e+00 130 2013 8 7.78566e+00 1.92517e+00 164 2013 9 1.19216e+01 4.45133e+00 262 2013 10 8.63978e+00 2.68930e+00 268 2013 11 1.10988e+01 2.55667e+00 349 2013 12 9.49452e+00 2.09198e+00 614 2014 1 1.36533e+01 3.19753e+00 573 2014 2 1.61073e+01 3.59057e+00 487 2014 3 1.82757e+01 4.92101e+00 694 2014 4 1.28841e+01 1.96485e+00 128 2014 5 1.39534e+01 4.78496e+00 252 2014 6 1.86641e+01 3.84906e+00 128 2014 7 1.55896e+01 2.47517e+00 58 2014 8 1.73130e+01 3.36746e+00 94 2014 9 1.37149e+01 4.07467e+00 211 2014 10 1.65465e+01 4.04119e+00 336 2014 11 1.55766e+01 4.60942e+00 562 2014 12 1.26653e+01 3.39157e+00 458 2015 1 1.24570e+01 2.91637e+00 689 2015 2 1.54293e+01 4.95484e+00 633 2015 3 1.59929e+01 4.33433e+00 395 2015 4 1.76701e+01 5.06713e+00 256 2015 5 1.43516e+01 1.98983e+00 64 2015 6 1.32328e+01 4.42349e+00 187 2015 7 9.78463e+00 1.64815e+00 64 2015 8 1.49892e+01 3.05022e+00 394 2015 9 1.38702e+01 3.62566e+00 365 2015 10 1.49230e+01 2.38111e+00 334 2015 11 1.39416e+01 3.14048e+00 393 2015 12 1.15722e+01 3.01026e+00 594 2016 1 1.14650e+01 3.49806e+00 498 2016 2 1.66661e+01 4.43880e+00 666 2016 3 1.59149e+01 3.16635e+00 237 2016 4 1.52190e+01 4.51554e+00 384 2016 5 1.88245e+01 1.42702e+00 65 2016 6 1.24745e+01 2.69793e+00 89 2016 7 1.40965e+01 4.12168e+00 226 2016 8 1.46948e+01 4.10833e+00 261 2016 9 1.51984e+01 4.98873e+00 607 2016 10 1.51864e+01 4.20205e+00 230 2016 11 1.37989e+01 4.84178e+00 170 2016 12 1.06300e+01 2.67449e+00 519 2017 1 1.35988e+01 3.11328e+00 635 2017 2 1.66511e+01 5.04727e+00 742 2017 3 1.72005e+01 3.91921e+00 413 2017 4 1.41117e+01 3.70358e+00 388 2017 5 1.40798e+01 2.67703e+00 176 2017 6 1.52713e+01 6.51429e+00 138 2017 7 1.08474e+01 2.40240e+00 120 2017 8 7.38356e+00 2.27174e+00 128 2017 9 1.67742e+01 5.01252e+00 92 2017 10 1.21783e+01 3.75631e+00 212 2017 11 9.38813e+00 2.51066e+00 417 2017 12 1.24862e+01 3.12460e+00 377 2018 1 1.40770e+01 3.44482e+00 721 2018 2 1.25703e+01 2.13295e+00 546 2018 3 1.86812e+01 5.05788e+00 519 2018 4 1.42908e+01 4.21475e+00 281 2018 5 1.10463e+01 2.56443e+00 288 2018 6 1.05129e+01 3.45397e+00 97 2018 7 1.03675e+01 1.14025e+00 64 2018 8 1.36915e+01 4.21219e+00 208 2018 9 1.93787e+01 4.43758e+00 196 2018 10 8.07333e+00 3.42195e+00 677 2018 11 1.14082e+01 2.22060e+00 528 2018 12 1.29578e+01 3.62634e+00 506 2019 1 1.26045e+01 3.33364e+00 697 2019 2 1.42044e+01 3.89452e+00 520 2019 3 1.43756e+01 4.40360e+00 393 2019 4 1.63513e+01 4.35574e+00 414 2019 5 nan nan 0 2019 6 1.29875e+01 4.06276e+00 252 2019 7 1.32943e+01 3.26954e+00 214 2019 8 1.29152e+01 3.14597e+00 138 2019 9 1.47443e+01 5.71418e+00 185 2019 10 1.17099e+01 3.60357e+00 618 2019 11 1.34441e+01 3.25841e+00 597 2019 12 1.51518e+01 3.83778e+00 893 2020 1 1.19046e+01 2.92848e+00 240 2020 2 1.69060e+01 4.03789e+00 617 2020 3 1.40424e+01 3.38660e+00 492 2020 4 1.57430e+01 5.61948e+00 470 2020 5 1.34082e+01 1.86604e+00 58 2020 6 1.61270e+01 4.21094e+00 327 2020 7 1.66406e+01 6.57029e+00 180 2020 8 1.79335e+01 3.08315e+00 143 2020 9 1.27868e+01 6.23343e+00 208 2020 10 1.11232e+01 2.42425e+00 369 2020 11 1.09521e+01 2.80930e+00 361 2020 12 1.13431e+01 3.36233e+00 591 2021 1 1.33277e+01 2.83640e+00 462 2021 2 1.72852e+01 5.35972e+00 489 2021 3 1.39356e+01 3.15365e+00 512 2021 4 1.40042e+01 3.08715e+00 414 2021 5 1.49014e+01 3.70770e+00 219 2021 6 1.16629e+01 1.89759e+00 32 2021 7 1.03670e+01 4.92581e+00 281 2021 8 1.27623e+01 3.02145e+00 232 2021 9 1.10857e+01 2.88223e+00 450 2021 10 1.09151e+01 2.89007e+00 171 2021 11 1.01833e+01 2.30532e+00 545 2021 12 1.13469e+01 2.30766e+00 662 2022 1 1.45323e+01 3.38477e+00 707 2022 2 1.85517e+01 3.87560e+00 412 2022 3 1.45658e+01 4.09970e+00 176 2022 4 1.54776e+01 4.45258e+00 120 2022 5 1.31228e+01 2.38718e+00 128 2022 6 1.73116e+01 4.97290e+00 429 2022 7 1.63957e+01 3.95810e+00 150 2022 8 1.72318e+01 7.85933e+00 273 2022 9 1.71696e+01 3.46419e+00 339 2022 10 8.34435e+00 2.80890e+00 245 2022 11 1.27992e+01 3.43990e+00 675 2022 12 1.35348e+01 3.50003e+00 1081 2023 1 1.46680e+01 3.73635e+00 967 2023 2 1.49589e+01 4.32978e+00 645 2023 3 1.81973e+01 4.29477e+00 717 2023 4 1.61454e+01 3.72398e+00 568 2023 5 1.80054e+01 3.79743e+00 415 2023 6 1.34827e+01 4.69092e+00 425 2023 7 1.31728e+01 2.73525e+00 64 2023 8 1.71374e+01 4.90849e+00 309 2023 9 1.76500e+01 5.84035e+00 409 2023 10 1.63173e+01 5.76530e+00 203 2023 11 1.24642e+01 3.33756e+00 450 2023 12 1.45615e+01 4.84085e+00 525 2024 1 1.50523e+01 3.91951e+00 526 2024 2 1.38002e+01 3.65191e+00 524 2024 3 1.81063e+01 5.55136e+00 526 2024 4 1.55835e+01 3.86817e+00 15