YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.14778e+01 3.24129e-02 9 2000 3 2.38215e+01 8.75625e-01 164 2000 4 2.54287e+01 6.22315e-01 142 2000 5 2.75980e+01 1.11385e+00 82 2000 6 2.89004e+01 1.16915e+00 80 2000 7 2.94310e+01 1.46270e+00 119 2000 8 2.89693e+01 1.37166e+00 81 2000 9 2.93244e+01 1.81644e+00 112 2000 10 2.67173e+01 2.75618e+00 93 2000 11 2.35960e+01 1.11770e+00 134 2000 12 2.28323e+01 5.70434e-01 82 2001 1 1.93291e+01 1.42619e+00 44 2001 2 2.30284e+01 1.45041e+00 132 2001 3 2.31379e+01 1.57645e+00 128 2001 4 2.55752e+01 1.56314e+00 111 2001 5 2.58177e+01 1.70380e+00 96 2001 6 2.92781e+01 1.46982e+00 96 2001 7 2.87160e+01 1.81273e+00 146 2001 8 2.99044e+01 1.30922e+00 144 2001 9 2.79792e+01 1.03144e+00 64 2001 10 2.59366e+01 1.54255e+00 62 2001 11 2.38913e+01 7.60278e-01 91 2001 12 2.41119e+01 8.20920e-01 95 2002 1 2.26687e+01 2.04417e+00 134 2002 2 2.25654e+01 1.05951e+00 48 2002 3 2.45341e+01 1.53647e+00 94 2002 4 2.65351e+01 2.14894e+00 148 2002 5 2.82157e+01 1.05449e+00 112 2002 6 2.81298e+01 2.37346e-01 22 2002 7 2.91038e+01 1.50447e+00 417 2002 8 3.00092e+01 9.91824e-01 449 2002 9 2.91363e+01 1.04072e+00 392 2002 10 2.83192e+01 1.00043e+00 760 2002 11 2.51367e+01 1.97150e+00 453 2002 12 2.10306e+01 1.43044e+00 505 2003 1 1.80286e+01 1.70390e+00 371 2003 2 2.19588e+01 1.94813e+00 612 2003 3 2.65934e+01 9.00437e-01 534 2003 4 2.47353e+01 1.45304e+00 505 2003 5 2.81869e+01 1.56523e+00 629 2003 6 2.86774e+01 1.07120e+00 207 2003 7 2.89583e+01 1.47287e+00 408 2003 8 2.94820e+01 1.04738e+00 332 2003 9 2.94019e+01 7.87608e-01 399 2003 10 2.74179e+01 1.26788e+00 680 2003 11 2.42884e+01 9.96716e-01 521 2003 12 1.95758e+01 1.64642e+00 421 2004 1 2.03082e+01 1.22456e+00 598 2004 2 2.16666e+01 1.20436e+00 479 2004 3 2.28624e+01 1.26660e+00 487 2004 4 2.35388e+01 1.34899e+00 542 2004 5 2.65993e+01 1.52958e+00 745 2004 6 3.00536e+01 1.10893e+00 615 2004 7 3.03012e+01 1.00317e+00 670 2004 8 2.99755e+01 1.48958e+00 316 2004 9 2.82781e+01 1.27086e+00 488 2004 10 2.63932e+01 1.31029e+00 526 2004 11 2.39685e+01 1.32855e+00 560 2004 12 2.20208e+01 1.83039e+00 369 2005 1 2.00454e+01 1.78291e+00 580 2005 2 2.01317e+01 1.34570e+00 454 2005 3 2.28025e+01 2.10608e+00 503 2005 4 2.39150e+01 1.03992e+00 701 2005 5 2.65596e+01 1.56652e+00 544 2005 6 2.86799e+01 1.11611e+00 294 2005 7 3.00124e+01 1.26488e+00 567 2005 8 3.08766e+01 1.16720e+00 523 2005 9 2.96525e+01 1.34349e+00 475 2005 10 2.65580e+01 2.54341e+00 412 2005 11 2.35515e+01 1.16219e+00 678 2005 12 2.13247e+01 1.46143e+00 576 2006 1 2.03859e+01 1.34282e+00 456 2006 2 2.09067e+01 1.71219e+00 605 2006 3 2.31752e+01 1.17803e+00 778 2006 4 2.49776e+01 1.83023e+00 561 2006 5 2.67713e+01 1.57425e+00 643 2006 6 2.90705e+01 1.23997e+00 558 2006 7 2.88914e+01 1.06644e+00 426 2006 8 2.98008e+01 1.02082e+00 405 2006 9 2.92403e+01 7.88934e-01 484 2006 10 2.72641e+01 1.45537e+00 602 2006 11 2.21858e+01 2.35254e+00 350 2006 12 2.25541e+01 9.36319e-01 374 2007 1 2.26512e+01 1.29421e+00 615 2007 2 2.04377e+01 1.23886e+00 336 2007 3 2.28233e+01 9.27156e-01 416 2007 4 2.43954e+01 1.13486e+00 697 2007 5 2.60985e+01 1.29009e+00 549 2007 6 2.82308e+01 1.47259e+00 498 2007 7 3.06063e+01 1.11944e+00 543 2007 8 3.04004e+01 1.09258e+00 683 2007 9 2.99912e+01 1.24195e+00 422 2007 10 2.73826e+01 1.13402e+00 328 2007 11 2.37738e+01 1.16403e+00 638 2007 12 2.33067e+01 1.24569e+00 660 2008 1 2.09513e+01 1.39813e+00 470 2008 2 2.32053e+01 1.51301e+00 595 2008 3 2.26062e+01 1.38242e+00 427 2008 4 2.46037e+01 1.50759e+00 664 2008 5 2.69024e+01 1.33585e+00 639 2008 6 2.85831e+01 9.36867e-01 480 2008 7 2.98394e+01 1.33312e+00 485 2008 8 3.01443e+01 1.26210e+00 491 2008 9 2.84595e+01 8.83627e-01 389 2008 10 2.63420e+01 2.06810e+00 461 2008 11 2.21537e+01 1.99812e+00 584 2008 12 2.10700e+01 1.36200e+00 532 2009 1 2.03705e+01 1.94531e+00 700 2009 2 2.03011e+01 1.71343e+00 611 2009 3 2.16602e+01 1.78058e+00 426 2009 4 2.47741e+01 1.01479e+00 640 2009 5 2.71353e+01 1.60507e+00 678 2009 6 2.99136e+01 1.26606e+00 386 2009 7 2.98722e+01 1.13011e+00 534 2009 8 3.02468e+01 8.73251e-01 592 2009 9 2.95118e+01 1.08300e+00 430 2009 10 2.85472e+01 1.93028e+00 680 2009 11 2.48245e+01 2.37261e+00 502 2009 12 2.32375e+01 2.08615e+00 427 2010 1 1.87595e+01 1.95813e+00 261 2010 2 1.96244e+01 1.70158e+00 295 2010 3 1.94000e+01 1.83775e+00 507 2010 4 2.37800e+01 1.35293e+00 527 2010 5 2.79251e+01 1.52526e+00 747 2010 6 3.06467e+01 1.27158e+00 537 2010 7 2.98756e+01 1.49041e+00 460 2010 8 3.09452e+01 1.43329e+00 466 2010 9 2.90419e+01 1.14209e+00 455 2010 10 2.65572e+01 1.16918e+00 671 2010 11 2.33020e+01 1.70365e+00 533 2010 12 1.89936e+01 2.59882e+00 513 2011 1 1.90148e+01 1.40342e+00 436 2011 2 2.21350e+01 1.45660e+00 721 2011 3 2.33323e+01 1.31010e+00 737 2011 4 2.66534e+01 1.01367e+00 743 2011 5 2.75414e+01 8.42907e-01 636 2011 6 2.86030e+01 1.59214e+00 519 2011 7 3.03110e+01 1.31747e+00 520 2011 8 2.95509e+01 1.41004e+00 349 2011 9 2.97142e+01 1.27479e+00 499 2011 10 2.68013e+01 2.17455e+00 293 2011 11 2.34946e+01 1.09376e+00 579 2011 12 2.20905e+01 8.56130e-01 616 2012 1 2.00845e+01 1.70786e+00 619 2012 2 2.26694e+01 1.60383e+00 466 2012 3 2.38363e+01 1.24945e+00 663 2012 4 2.49428e+01 1.27785e+00 597 2012 5 2.67162e+01 1.52158e+00 455 2012 6 2.88409e+01 1.05263e+00 419 2012 7 2.97570e+01 1.27357e+00 563 2012 8 2.97981e+01 1.38995e+00 499 2012 9 2.90169e+01 1.24006e+00 436 2012 10 2.67076e+01 2.10090e+00 532 2012 11 2.22630e+01 1.26650e+00 548 2012 12 2.22309e+01 1.65872e+00 507 2013 1 2.21840e+01 1.16138e+00 535 2013 2 2.21713e+01 1.25071e+00 511 2013 3 2.09650e+01 1.43249e+00 642 2013 4 2.53222e+01 1.54352e+00 618 2013 5 2.65977e+01 1.19122e+00 716 2013 6 2.88178e+01 1.31973e+00 430 2013 7 2.93677e+01 1.27505e+00 367 2013 8 2.95044e+01 1.23905e+00 426 2013 9 2.91167e+01 8.77368e-01 404 2013 10 2.75934e+01 1.40806e+00 689 2013 11 2.46932e+01 1.60001e+00 342 2013 12 2.33924e+01 9.98424e-01 569 2014 1 2.08069e+01 2.06262e+00 483 2014 2 2.41157e+01 1.54839e+00 684 2014 3 2.40659e+01 9.98343e-01 740 2014 4 2.59456e+01 1.50282e+00 703 2014 5 2.67084e+01 1.30376e+00 479 2014 6 2.94512e+01 1.44418e+00 456 2014 7 3.01252e+01 9.62005e-01 444 2014 8 3.11347e+01 1.35620e+00 684 2014 9 2.88761e+01 1.05456e+00 367 2014 10 2.71426e+01 1.38572e+00 556 2014 11 2.34035e+01 1.36501e+00 593 2014 12 2.16222e+01 1.63755e+00 549 2015 1 2.23916e+01 1.76836e+00 431 2015 2 1.99961e+01 1.16460e+00 472 2015 3 2.52886e+01 1.38443e+00 821 2015 4 2.70895e+01 1.91139e+00 708 2015 5 2.77554e+01 1.20547e+00 585 2015 6 3.00044e+01 1.55579e+00 478 2015 7 3.05214e+01 7.72035e-01 501 2015 8 3.05486e+01 1.05559e+00 457 2015 9 2.96376e+01 1.25196e+00 283 2015 10 2.75603e+01 1.75752e+00 447 2015 11 2.69867e+01 1.74082e+00 534 2015 12 2.41540e+01 1.32886e+00 396 2016 1 2.05555e+01 1.88627e+00 204 2016 2 2.10512e+01 1.49069e+00 392 2016 3 2.32759e+01 2.14864e+00 309 2016 4 2.53949e+01 9.95897e-01 589 2016 5 2.74722e+01 1.39751e+00 658 2016 6 2.96288e+01 1.22976e+00 527 2016 7 3.08462e+01 1.34321e+00 587 2016 8 3.08083e+01 1.22544e+00 404 2016 9 3.03053e+01 1.27220e+00 604 2016 10 2.71249e+01 1.58233e+00 420 2016 11 2.38190e+01 1.25415e+00 546 2016 12 2.43849e+01 9.32133e-01 555 2017 1 2.20915e+01 1.30292e+00 544 2017 2 2.28765e+01 1.06721e+00 616 2017 3 2.29372e+01 1.42731e+00 675 2017 4 2.52705e+01 1.31823e+00 407 2017 5 2.75760e+01 1.43476e+00 730 2017 6 2.84218e+01 2.03116e+00 319 2017 7 3.05592e+01 1.01182e+00 525 2017 8 3.07774e+01 1.54435e+00 614 2017 9 2.97849e+01 1.26885e+00 553 2017 10 2.73480e+01 2.08526e+00 366 2017 11 2.47033e+01 1.00391e+00 703 2017 12 2.30128e+01 1.64608e+00 781 2018 1 2.01528e+01 1.11808e+00 320 2018 2 2.40542e+01 1.56169e+00 687 2018 3 2.31111e+01 1.59890e+00 774 2018 4 2.59099e+01 1.12787e+00 668 2018 5 2.63431e+01 1.38290e+00 194 2018 6 2.98271e+01 9.35690e-01 412 2018 7 3.08038e+01 1.29592e+00 545 2018 8 3.02820e+01 1.07268e+00 671 2018 9 3.03676e+01 1.11991e+00 514 2018 10 2.80281e+01 1.16170e+00 730 2018 11 2.62027e+01 1.37751e+00 536 2018 12 2.18988e+01 1.40384e+00 481 2019 1 2.17929e+01 1.70077e+00 622 2019 2 2.38537e+01 1.94872e+00 639 2019 3 2.46074e+01 1.36966e+00 592 2019 4 2.61659e+01 1.17435e+00 711 2019 5 2.80026e+01 1.37896e+00 618 2019 6 3.04917e+01 1.33476e+00 493 2019 7 3.03716e+01 1.26047e+00 488 2019 8 3.05111e+01 9.63134e-01 484 2019 9 2.84774e+01 1.34400e+00 560 2019 10 2.78513e+01 9.57714e-01 550 2019 11 2.51386e+01 2.37986e+00 547 2019 12 2.27049e+01 1.13029e+00 588 2020 1 2.23229e+01 1.44464e+00 553 2020 2 2.29522e+01 1.80464e+00 561 2020 3 2.44968e+01 1.89970e+00 740 2020 4 2.76022e+01 1.03555e+00 512 2020 5 2.69789e+01 1.40876e+00 474 2020 6 3.01785e+01 1.31838e+00 430 2020 7 3.03818e+01 1.51956e+00 500 2020 8 3.08652e+01 1.26101e+00 532 2020 9 2.97898e+01 1.14953e+00 508 2020 10 2.86319e+01 1.44848e+00 478 2020 11 2.51982e+01 1.58817e+00 380 2020 12 2.23082e+01 1.45118e+00 479 2021 1 2.14376e+01 1.14779e+00 543 2021 2 2.32177e+01 2.12294e+00 597 2021 3 2.42940e+01 1.58406e+00 681 2021 4 2.55079e+01 1.57451e+00 614 2021 5 2.72128e+01 1.73823e+00 648 2021 6 2.83410e+01 1.25195e+00 234 2021 7 2.99679e+01 1.29112e+00 583 2021 8 3.06587e+01 1.12829e+00 514 2021 9 2.98247e+01 9.14671e-01 513 2021 10 2.79287e+01 1.08486e+00 497 2021 11 2.35409e+01 1.40449e+00 550 2021 12 2.36687e+01 1.33086e+00 791 2022 1 2.21180e+01 1.55290e+00 385 2022 2 2.22098e+01 1.96950e+00 648 2022 3 2.47845e+01 1.11678e+00 759 2022 4 2.58582e+01 9.68941e-01 388 2022 5 2.83414e+01 9.58862e-01 578 2022 6 2.97861e+01 1.43206e+00 475 2022 7 3.03939e+01 9.87378e-01 650 2022 8 3.03024e+01 9.07112e-01 644 2022 9 3.07640e+01 1.33130e+00 457 2022 10 2.65883e+01 1.37878e+00 549 2022 11 2.63311e+01 7.33950e-01 645 2022 12 2.38800e+01 1.52899e+00 524 2023 1 2.15735e+01 1.60913e+00 812 2023 2 2.39928e+01 1.28958e+00 850 2023 3 2.49778e+01 1.31892e+00 587 2023 4 2.68557e+01 1.11136e+00 439 2023 5 2.80439e+01 1.14967e+00 644 2023 6 2.96326e+01 9.02072e-01 362 2023 7 3.16425e+01 9.36484e-01 370 2023 8 3.10796e+01 1.25546e+00 474 2023 9 3.02212e+01 1.13695e+00 485 2023 10 2.73572e+01 1.90243e+00 561 2023 11 2.48835e+01 1.16673e+00 484 2023 12 2.21328e+01 2.00541e+00 330 2024 1 2.18103e+01 1.73284e+00 289 2024 2 2.10864e+01 1.03338e+00 596 2024 3 2.51407e+01 9.93102e-01 514 2024 4 2.47424e+01 5.02114e-01 50