YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.80866e+01 4.59525e-02 16 2000 3 1.93960e+01 1.94629e+00 173 2000 4 2.15256e+01 2.11671e+00 148 2000 5 2.64916e+01 2.49250e+00 169 2000 6 2.88562e+01 1.21506e+00 127 2000 7 3.06751e+01 1.01505e+00 144 2000 8 3.00434e+01 1.01094e+00 56 2000 9 2.61200e+01 1.72705e+00 140 2000 10 2.32039e+01 1.71233e+00 133 2000 11 2.19278e+01 2.52415e+00 86 2000 12 1.77803e+01 6.82700e-02 16 2001 1 nan nan 0 2001 2 1.69883e+01 8.93366e-01 48 2001 3 1.73220e+01 1.83907e+00 107 2001 4 2.05886e+01 2.06489e+00 131 2001 5 2.51387e+01 2.05178e+00 185 2001 6 2.78778e+01 6.15162e-02 16 2001 7 2.81533e+01 8.25814e-01 69 2001 8 2.77057e+01 1.41869e+00 142 2001 9 2.66126e+01 1.87778e+00 79 2001 10 2.24165e+01 1.79833e+00 171 2001 11 1.94937e+01 1.24966e+00 179 2001 12 1.86110e+01 1.84673e+00 140 2002 1 1.65883e+01 9.99297e-01 24 2002 2 1.45175e+01 2.63605e-01 24 2002 3 1.82700e+01 2.50861e+00 26 2002 4 2.20123e+01 3.57659e+00 108 2002 5 2.55474e+01 2.37900e+00 170 2002 6 2.89906e+01 1.02406e+00 89 2002 7 3.00736e+01 1.57808e+00 487 2002 8 2.88295e+01 1.25968e+00 494 2002 9 2.81693e+01 1.59371e+00 489 2002 10 2.64006e+01 2.22780e+00 504 2002 11 2.00422e+01 1.86813e+00 236 2002 12 1.52296e+01 1.07020e+00 105 2003 1 1.23583e+01 1.02218e+00 118 2003 2 1.45224e+01 1.42444e+00 252 2003 3 1.99216e+01 2.33701e+00 318 2003 4 2.03691e+01 2.86065e+00 375 2003 5 2.56708e+01 1.48388e+00 504 2003 6 2.77538e+01 1.99380e+00 450 2003 7 2.85996e+01 1.79317e+00 382 2003 8 2.80636e+01 1.72689e+00 401 2003 9 2.74029e+01 1.41574e+00 575 2003 10 2.28295e+01 1.60413e+00 548 2003 11 2.12687e+01 1.68536e+00 457 2003 12 1.63170e+01 8.70506e-01 44 2004 1 1.36875e+01 4.99749e-01 137 2004 2 1.30545e+01 1.32939e+00 111 2004 3 1.91292e+01 2.16577e+00 534 2004 4 2.05830e+01 2.21905e+00 440 2004 5 2.62610e+01 2.42361e+00 685 2004 6 2.82398e+01 2.21036e+00 430 2004 7 2.96789e+01 1.79305e+00 665 2004 8 2.89546e+01 1.35639e+00 459 2004 9 2.69581e+01 1.94767e+00 543 2004 10 2.46290e+01 2.12507e+00 552 2004 11 2.07509e+01 2.41680e+00 364 2004 12 1.71660e+01 1.35695e+00 96 2005 1 1.42224e+01 1.77733e+00 127 2005 2 1.46272e+01 1.34906e+00 197 2005 3 1.65878e+01 2.26797e+00 367 2005 4 1.97950e+01 1.48127e+00 539 2005 5 2.44677e+01 3.09526e+00 595 2005 6 2.84169e+01 2.16132e+00 469 2005 7 2.96052e+01 1.69745e+00 572 2005 8 2.88875e+01 1.82148e+00 547 2005 9 2.80525e+01 1.19269e+00 587 2005 10 2.49723e+01 1.73331e+00 566 2005 11 1.99241e+01 2.04749e+00 291 2005 12 1.61996e+01 6.62193e-01 38 2006 1 1.52133e+01 1.46249e+00 283 2006 2 1.38158e+01 1.45276e+00 305 2006 3 1.78607e+01 1.61593e+00 469 2006 4 2.34076e+01 2.28466e+00 620 2006 5 2.57089e+01 2.30741e+00 688 2006 6 2.88356e+01 1.63392e+00 629 2006 7 3.00397e+01 1.55271e+00 483 2006 8 3.01106e+01 1.59688e+00 593 2006 9 2.79156e+01 1.78585e+00 600 2006 10 2.45464e+01 2.50986e+00 447 2006 11 1.88603e+01 2.00690e+00 291 2006 12 1.55466e+01 1.62308e+00 163 2007 1 1.46447e+01 2.06877e+00 117 2007 2 1.40290e+01 1.78557e+00 176 2007 3 1.83499e+01 2.43030e+00 572 2007 4 2.05451e+01 2.22794e+00 543 2007 5 2.45561e+01 1.53845e+00 596 2007 6 2.77466e+01 2.45635e+00 567 2007 7 2.94930e+01 1.51865e+00 410 2007 8 3.01556e+01 1.66467e+00 625 2007 9 2.82656e+01 1.58304e+00 519 2007 10 2.50208e+01 2.33810e+00 469 2007 11 1.91361e+01 1.47206e+00 524 2007 12 1.80596e+01 1.88325e+00 247 2008 1 1.50705e+01 1.15780e+00 157 2008 2 1.59297e+01 1.24057e+00 260 2008 3 1.74932e+01 1.78709e+00 511 2008 4 2.14959e+01 2.45055e+00 473 2008 5 2.54410e+01 2.25835e+00 621 2008 6 2.96722e+01 1.73207e+00 575 2008 7 2.90205e+01 1.61799e+00 562 2008 8 2.82344e+01 1.67091e+00 443 2008 9 2.63669e+01 1.89823e+00 469 2008 10 2.33266e+01 2.08362e+00 574 2008 11 1.90075e+01 1.87722e+00 317 2008 12 1.67382e+01 8.25868e-01 142 2009 1 1.52074e+01 1.37912e+00 159 2009 2 1.42051e+01 1.55883e+00 261 2009 3 1.83545e+01 2.83082e+00 396 2009 4 2.11644e+01 2.40512e+00 433 2009 5 2.56099e+01 2.06127e+00 497 2009 6 2.90138e+01 2.16704e+00 735 2009 7 2.92638e+01 2.00621e+00 586 2009 8 2.84805e+01 1.90427e+00 499 2009 9 2.79393e+01 1.50094e+00 516 2009 10 2.54508e+01 3.08319e+00 466 2009 11 1.82457e+01 1.58401e+00 220 2009 12 1.39699e+01 1.29526e+00 49 2010 1 1.38989e+01 1.36596e+00 107 2010 2 1.17931e+01 8.55138e-01 115 2010 3 1.52374e+01 2.25134e+00 408 2010 4 2.15378e+01 1.90883e+00 605 2010 5 2.71390e+01 2.56078e+00 603 2010 6 3.05424e+01 1.96620e+00 735 2010 7 2.99023e+01 1.79151e+00 643 2010 8 2.93949e+01 2.13081e+00 377 2010 9 2.93325e+01 1.88923e+00 730 2010 10 2.34495e+01 1.44561e+00 728 2010 11 1.91515e+01 1.54589e+00 471 2010 12 1.52525e+01 2.44328e+00 154 2011 1 1.16886e+01 7.86223e-01 160 2011 2 1.47054e+01 4.07301e+00 267 2011 3 1.93427e+01 2.64072e+00 483 2011 4 2.28966e+01 1.99007e+00 577 2011 5 2.53323e+01 2.37747e+00 808 2011 6 3.02532e+01 1.27935e+00 645 2011 7 3.06304e+01 1.68040e+00 577 2011 8 3.07963e+01 1.40963e+00 718 2011 9 2.73145e+01 1.48167e+00 639 2011 10 2.28235e+01 2.09568e+00 605 2011 11 1.80598e+01 1.21363e+00 382 2011 12 1.61619e+01 1.09767e+00 138 2012 1 1.49218e+01 1.80308e+00 186 2012 2 1.55548e+01 1.99613e+00 95 2012 3 2.16921e+01 2.52637e+00 532 2012 4 2.29599e+01 1.63907e+00 632 2012 5 2.70670e+01 1.59237e+00 706 2012 6 2.76534e+01 1.58311e+00 539 2012 7 2.94781e+01 9.42277e-01 491 2012 8 2.85439e+01 1.52296e+00 349 2012 9 2.73076e+01 1.92984e+00 660 2012 10 2.40000e+01 1.70393e+00 645 2012 11 1.82592e+01 1.79398e+00 412 2012 12 1.77561e+01 1.32897e+00 278 2013 1 1.59916e+01 1.85048e+00 213 2013 2 1.52594e+01 1.61700e+00 180 2013 3 1.57775e+01 1.83450e+00 430 2013 4 2.03742e+01 1.81985e+00 346 2013 5 2.44381e+01 3.07754e+00 664 2013 6 2.86219e+01 1.90891e+00 544 2013 7 2.78535e+01 1.70590e+00 263 2013 8 2.82853e+01 2.14649e+00 441 2013 9 2.85845e+01 1.79125e+00 539 2013 10 2.33801e+01 2.58996e+00 495 2013 11 2.02993e+01 2.23397e+00 369 2013 12 1.72553e+01 1.47771e+00 145 2014 1 1.22127e+01 7.41517e-01 140 2014 2 1.39328e+01 2.03537e+00 234 2014 3 1.67138e+01 2.05592e+00 369 2014 4 1.91654e+01 2.19404e+00 363 2014 5 2.42527e+01 2.55175e+00 499 2014 6 2.89550e+01 2.50874e+00 710 2014 7 2.92503e+01 1.41507e+00 657 2014 8 2.96894e+01 1.55252e+00 601 2014 9 2.89103e+01 2.31553e+00 510 2014 10 2.47110e+01 2.12645e+00 763 2014 11 1.70039e+01 2.28719e+00 319 2014 12 1.67297e+01 1.70684e+00 248 2015 1 1.36481e+01 8.54636e-01 109 2015 2 1.32397e+01 1.15186e+00 265 2015 3 1.96616e+01 2.62777e+00 240 2015 4 2.24981e+01 1.41883e+00 264 2015 5 2.58918e+01 2.72336e+00 501 2015 6 2.94237e+01 2.03014e+00 708 2015 7 2.98396e+01 1.64803e+00 525 2015 8 3.00748e+01 1.73188e+00 598 2015 9 2.76818e+01 1.48452e+00 448 2015 10 2.37173e+01 1.62468e+00 473 2015 11 2.10512e+01 2.73620e+00 375 2015 12 1.85538e+01 1.79933e+00 144 2016 1 1.46777e+01 1.32934e+00 69 2016 2 1.44483e+01 1.88285e+00 343 2016 3 1.82127e+01 1.97490e+00 370 2016 4 2.11103e+01 1.62948e+00 502 2016 5 2.53781e+01 2.21476e+00 524 2016 6 2.92993e+01 1.73560e+00 635 2016 7 3.07640e+01 1.15428e+00 680 2016 8 2.97686e+01 1.71421e+00 547 2016 9 2.91733e+01 1.40424e+00 716 2016 10 2.53661e+01 1.54398e+00 663 2016 11 2.08838e+01 2.33314e+00 426 2016 12 1.84547e+01 1.47268e+00 215 2017 1 1.77353e+01 1.36532e+00 143 2017 2 1.77941e+01 1.66974e+00 393 2017 3 1.89138e+01 2.65257e+00 506 2017 4 2.25345e+01 1.98236e+00 547 2017 5 2.47615e+01 2.07969e+00 574 2017 6 2.78624e+01 1.96987e+00 328 2017 7 2.96467e+01 1.89717e+00 616 2017 8 2.96615e+01 1.71097e+00 396 2017 9 2.75720e+01 2.30355e+00 526 2017 10 2.46534e+01 2.12770e+00 650 2017 11 2.04009e+01 1.90633e+00 486 2017 12 1.78310e+01 2.79884e+00 135 2018 1 1.39360e+01 8.15019e-01 61 2018 2 1.97892e+01 2.63684e+00 257 2018 3 1.81820e+01 2.29421e+00 439 2018 4 2.11044e+01 1.39000e+00 534 2018 5 2.56467e+01 2.37436e+00 433 2018 6 2.97075e+01 1.82416e+00 708 2018 7 3.00953e+01 1.37058e+00 541 2018 8 2.93269e+01 1.71773e+00 517 2018 9 2.90753e+01 1.79411e+00 540 2018 10 2.57846e+01 2.58363e+00 747 2018 11 2.02724e+01 2.01982e+00 131 2018 12 1.58134e+01 1.26874e+00 174 2019 1 1.58235e+01 1.67953e+00 207 2019 2 1.81562e+01 1.82530e+00 127 2019 3 1.76372e+01 1.96578e+00 380 2019 4 2.15668e+01 1.74676e+00 470 2019 5 2.81539e+01 2.48158e+00 723 2019 6 2.96899e+01 1.44871e+00 405 2019 7 3.01427e+01 1.46987e+00 571 2019 8 3.01398e+01 1.40905e+00 521 2019 9 2.96870e+01 1.37011e+00 775 2019 10 2.70321e+01 2.92892e+00 471 2019 11 1.93775e+01 2.03179e+00 328 2019 12 1.67683e+01 1.66249e+00 238 2020 1 1.63453e+01 1.54809e+00 401 2020 2 1.54777e+01 1.67913e+00 374 2020 3 2.17191e+01 4.16279e+00 366 2020 4 2.33163e+01 1.27447e+00 440 2020 5 2.48604e+01 2.16097e+00 640 2020 6 2.87352e+01 1.65602e+00 464 2020 7 2.95104e+01 1.05690e+00 479 2020 8 3.14044e+01 1.33154e+00 464 2020 9 2.84411e+01 3.07361e+00 472 2020 10 2.44843e+01 1.78903e+00 667 2020 11 2.14808e+01 1.64737e+00 603 2020 12 1.61372e+01 1.01127e+00 173 2021 1 1.57088e+01 1.15493e+00 188 2021 2 1.53303e+01 2.29181e+00 238 2021 3 1.78790e+01 2.24614e+00 380 2021 4 2.07214e+01 1.69831e+00 522 2021 5 2.48686e+01 2.44240e+00 618 2021 6 2.76260e+01 1.30818e+00 332 2021 7 2.98123e+01 1.94923e+00 410 2021 8 3.05444e+01 1.44451e+00 417 2021 9 2.74439e+01 1.60507e+00 503 2021 10 2.53954e+01 1.63324e+00 526 2021 11 1.85661e+01 1.55417e+00 488 2021 12 1.74375e+01 1.56058e+00 434 2022 1 1.59618e+01 2.40623e+00 313 2022 2 1.61981e+01 2.93610e+00 426 2022 3 1.88669e+01 1.83890e+00 667 2022 4 2.22985e+01 1.69876e+00 476 2022 5 2.70196e+01 1.48677e+00 527 2022 6 3.02239e+01 1.83561e+00 634 2022 7 3.01750e+01 1.71751e+00 587 2022 8 3.02513e+01 1.56049e+00 449 2022 9 2.81560e+01 1.76659e+00 632 2022 10 2.33219e+01 1.75215e+00 664 2022 11 2.11116e+01 2.59278e+00 380 2022 12 1.85901e+01 2.16012e+00 350 2023 1 1.63731e+01 1.56374e+00 484 2023 2 1.71956e+01 2.65287e+00 423 2023 3 2.01986e+01 2.38376e+00 322 2023 4 2.24447e+01 1.61988e+00 511 2023 5 2.51543e+01 2.41323e+00 519 2023 6 2.87485e+01 2.10118e+00 505 2023 7 3.06482e+01 1.31548e+00 549 2023 8 3.16221e+01 1.02818e+00 738 2023 9 2.92198e+01 1.47963e+00 660 2023 10 2.41568e+01 2.19548e+00 622 2023 11 1.92520e+01 1.89317e+00 443 2023 12 1.50830e+01 1.69160e+00 341 2024 1 1.33491e+01 1.33518e+00 315 2024 2 1.47661e+01 1.77462e+00 473 2024 3 1.90049e+01 1.51982e+00 388 2024 4 2.16307e+01 1.18090e+00 48