YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.26319e+01 7.45318e-01 26 2000 3 2.44078e+01 8.26532e-01 156 2000 4 2.56308e+01 1.00400e+00 137 2000 5 2.81034e+01 1.01258e+00 61 2000 6 2.87938e+01 1.97608e+00 81 2000 7 3.02777e+01 6.22553e-01 77 2000 8 2.85151e+01 1.39549e+00 73 2000 9 2.92544e+01 1.67935e+00 75 2000 10 2.58120e+01 2.44783e+00 109 2000 11 2.39625e+01 1.13150e+00 150 2000 12 2.21555e+01 1.11077e+00 68 2001 1 2.04778e+01 1.16397e+00 59 2001 2 2.30105e+01 1.31993e+00 144 2001 3 2.27283e+01 1.98450e+00 87 2001 4 2.54529e+01 1.63640e+00 161 2001 5 2.62253e+01 1.85373e+00 97 2001 6 2.95408e+01 1.67369e+00 64 2001 7 2.86218e+01 1.79600e+00 71 2001 8 3.03291e+01 1.36240e+00 144 2001 9 2.87622e+01 1.44580e+00 64 2001 10 2.54118e+01 9.73321e-01 62 2001 11 2.37805e+01 1.02359e+00 128 2001 12 2.34238e+01 1.26854e+00 121 2002 1 2.14547e+01 2.02843e+00 118 2002 2 2.24905e+01 1.09922e+00 78 2002 3 2.43893e+01 2.26344e+00 142 2002 4 2.69927e+01 1.57502e+00 126 2002 5 2.77672e+01 9.29625e-01 83 2002 6 2.91079e+01 7.18440e-01 40 2002 7 2.94626e+01 1.53162e+00 541 2002 8 2.97537e+01 1.25538e+00 454 2002 9 2.89963e+01 1.00878e+00 433 2002 10 2.82915e+01 1.00327e+00 823 2002 11 2.49078e+01 2.21757e+00 555 2002 12 2.14854e+01 1.22445e+00 396 2003 1 1.80675e+01 1.75839e+00 413 2003 2 2.21828e+01 2.01932e+00 632 2003 3 2.67116e+01 1.04329e+00 507 2003 4 2.48738e+01 1.84420e+00 502 2003 5 2.84841e+01 1.46578e+00 631 2003 6 2.87855e+01 1.00800e+00 294 2003 7 2.94944e+01 1.08602e+00 463 2003 8 2.94317e+01 1.15736e+00 283 2003 9 2.95333e+01 8.28494e-01 421 2003 10 2.76420e+01 1.61822e+00 620 2003 11 2.43899e+01 1.02636e+00 541 2003 12 1.94480e+01 1.74309e+00 378 2004 1 2.04572e+01 1.40055e+00 549 2004 2 2.19207e+01 1.62592e+00 511 2004 3 2.30930e+01 1.39314e+00 498 2004 4 2.34882e+01 1.58902e+00 613 2004 5 2.68230e+01 1.64008e+00 733 2004 6 3.00810e+01 1.18700e+00 555 2004 7 3.05752e+01 1.22780e+00 539 2004 8 3.08809e+01 1.43784e+00 315 2004 9 2.85082e+01 1.70036e+00 305 2004 10 2.67160e+01 1.45265e+00 605 2004 11 2.39033e+01 1.21739e+00 641 2004 12 2.12593e+01 2.42455e+00 371 2005 1 2.00851e+01 1.89956e+00 651 2005 2 2.02432e+01 1.12227e+00 455 2005 3 2.25033e+01 2.28306e+00 487 2005 4 2.38245e+01 1.23179e+00 632 2005 5 2.63352e+01 1.98171e+00 552 2005 6 2.88002e+01 1.25912e+00 294 2005 7 3.00707e+01 1.39105e+00 547 2005 8 3.08677e+01 1.67386e+00 545 2005 9 2.97371e+01 1.73928e+00 504 2005 10 2.66880e+01 2.71134e+00 311 2005 11 2.39229e+01 1.31244e+00 650 2005 12 2.16499e+01 1.55555e+00 550 2006 1 2.05123e+01 1.47237e+00 473 2006 2 2.12716e+01 1.78849e+00 495 2006 3 2.31192e+01 1.48820e+00 674 2006 4 2.55166e+01 1.84567e+00 563 2006 5 2.72027e+01 1.70533e+00 594 2006 6 2.95488e+01 1.19322e+00 536 2006 7 2.89191e+01 1.32100e+00 332 2006 8 3.00358e+01 1.46102e+00 348 2006 9 2.94792e+01 1.30636e+00 481 2006 10 2.73774e+01 1.76406e+00 625 2006 11 2.22185e+01 2.33313e+00 397 2006 12 2.26036e+01 1.12046e+00 359 2007 1 2.24043e+01 1.23902e+00 556 2007 2 2.00123e+01 1.43923e+00 282 2007 3 2.29887e+01 8.62146e-01 443 2007 4 2.45101e+01 1.38628e+00 621 2007 5 2.64363e+01 1.36124e+00 635 2007 6 2.83404e+01 1.51019e+00 342 2007 7 3.06219e+01 1.15684e+00 529 2007 8 3.07485e+01 1.13147e+00 648 2007 9 2.98981e+01 1.38627e+00 428 2007 10 2.73714e+01 1.13207e+00 250 2007 11 2.35894e+01 1.24269e+00 638 2007 12 2.32074e+01 1.26333e+00 557 2008 1 2.11641e+01 1.33937e+00 427 2008 2 2.31619e+01 1.34852e+00 498 2008 3 2.30445e+01 1.35394e+00 521 2008 4 2.48319e+01 1.59745e+00 667 2008 5 2.75302e+01 1.81514e+00 762 2008 6 2.86632e+01 1.20434e+00 517 2008 7 3.00763e+01 1.38924e+00 509 2008 8 3.00360e+01 1.55197e+00 510 2008 9 2.84259e+01 8.83049e-01 362 2008 10 2.66578e+01 2.22219e+00 396 2008 11 2.20614e+01 1.94686e+00 652 2008 12 2.12789e+01 1.12821e+00 547 2009 1 2.04357e+01 2.15847e+00 543 2009 2 2.06751e+01 1.61409e+00 528 2009 3 2.19210e+01 2.13839e+00 428 2009 4 2.48658e+01 1.22035e+00 632 2009 5 2.74719e+01 1.64136e+00 679 2009 6 3.02655e+01 1.68879e+00 357 2009 7 2.99717e+01 1.30224e+00 490 2009 8 3.03035e+01 1.31291e+00 549 2009 9 2.95969e+01 9.89074e-01 376 2009 10 2.83610e+01 2.14597e+00 678 2009 11 2.43667e+01 2.19213e+00 403 2009 12 2.33273e+01 1.94744e+00 436 2010 1 2.00609e+01 1.69242e+00 289 2010 2 1.97238e+01 1.84506e+00 327 2010 3 1.96591e+01 2.19476e+00 480 2010 4 2.40779e+01 1.28972e+00 484 2010 5 2.82099e+01 1.67171e+00 576 2010 6 3.08268e+01 1.65166e+00 576 2010 7 2.99236e+01 1.33898e+00 365 2010 8 3.11130e+01 1.11973e+00 500 2010 9 2.93503e+01 1.48747e+00 523 2010 10 2.65850e+01 1.33960e+00 753 2010 11 2.35988e+01 1.93049e+00 542 2010 12 1.94330e+01 2.56321e+00 350 2011 1 1.95665e+01 1.44232e+00 409 2011 2 2.20315e+01 1.64290e+00 633 2011 3 2.35351e+01 1.77118e+00 720 2011 4 2.70135e+01 1.03354e+00 739 2011 5 2.77539e+01 8.63995e-01 556 2011 6 2.89552e+01 1.75767e+00 531 2011 7 3.03581e+01 1.46242e+00 512 2011 8 2.98549e+01 1.19033e+00 392 2011 9 3.00669e+01 1.21243e+00 576 2011 10 2.60486e+01 2.04582e+00 360 2011 11 2.37731e+01 9.66306e-01 634 2011 12 2.20501e+01 8.16573e-01 642 2012 1 2.00554e+01 1.95490e+00 467 2012 2 2.24160e+01 1.81947e+00 343 2012 3 2.38099e+01 1.31370e+00 659 2012 4 2.49991e+01 1.47910e+00 451 2012 5 2.71235e+01 1.66408e+00 455 2012 6 2.86780e+01 1.67609e+00 300 2012 7 2.96225e+01 1.15499e+00 586 2012 8 2.98930e+01 1.62628e+00 524 2012 9 2.98524e+01 1.28478e+00 412 2012 10 2.65349e+01 2.40418e+00 527 2012 11 2.22105e+01 1.51054e+00 569 2012 12 2.23251e+01 1.63273e+00 537 2013 1 2.23553e+01 1.11528e+00 563 2013 2 2.20981e+01 1.35862e+00 527 2013 3 2.16826e+01 1.96186e+00 452 2013 4 2.55595e+01 1.27870e+00 509 2013 5 2.70952e+01 1.31093e+00 640 2013 6 2.93363e+01 8.83509e-01 352 2013 7 2.95426e+01 1.39559e+00 409 2013 8 2.92630e+01 1.09370e+00 413 2013 9 2.91204e+01 8.75629e-01 342 2013 10 2.78557e+01 1.49267e+00 724 2013 11 2.48775e+01 1.22623e+00 401 2013 12 2.34456e+01 8.26789e-01 451 2014 1 2.09342e+01 1.96799e+00 370 2014 2 2.40565e+01 1.52558e+00 631 2014 3 2.43461e+01 1.27010e+00 675 2014 4 2.59136e+01 1.71089e+00 649 2014 5 2.69655e+01 1.52849e+00 496 2014 6 2.92995e+01 1.65763e+00 466 2014 7 2.99823e+01 1.22749e+00 563 2014 8 3.12461e+01 1.14273e+00 761 2014 9 2.95695e+01 1.00379e+00 345 2014 10 2.70689e+01 1.68210e+00 556 2014 11 2.33108e+01 1.71674e+00 567 2014 12 2.14200e+01 1.47499e+00 587 2015 1 2.19437e+01 1.97039e+00 436 2015 2 2.00646e+01 1.42785e+00 526 2015 3 2.54639e+01 1.40953e+00 741 2015 4 2.73467e+01 1.83737e+00 679 2015 5 2.77451e+01 1.36316e+00 677 2015 6 3.00385e+01 1.43155e+00 425 2015 7 3.05009e+01 8.84741e-01 504 2015 8 3.03915e+01 1.11270e+00 509 2015 9 3.04643e+01 1.21259e+00 213 2015 10 2.78708e+01 1.60507e+00 481 2015 11 2.66878e+01 2.25946e+00 713 2015 12 2.43352e+01 1.03262e+00 384 2016 1 2.23442e+01 2.73805e+00 179 2016 2 2.09581e+01 1.57815e+00 455 2016 3 2.36382e+01 1.85170e+00 310 2016 4 2.56331e+01 1.26352e+00 572 2016 5 2.76637e+01 1.42407e+00 693 2016 6 2.97981e+01 1.17083e+00 593 2016 7 3.06663e+01 1.13583e+00 640 2016 8 3.08890e+01 1.10058e+00 447 2016 9 3.04268e+01 1.74830e+00 617 2016 10 2.73229e+01 1.66754e+00 464 2016 11 2.37778e+01 1.22773e+00 606 2016 12 2.43004e+01 8.57158e-01 543 2017 1 2.18926e+01 1.44210e+00 553 2017 2 2.29535e+01 1.19374e+00 696 2017 3 2.32113e+01 1.57419e+00 611 2017 4 2.50350e+01 1.31727e+00 370 2017 5 2.76355e+01 1.36492e+00 657 2017 6 2.94464e+01 1.48884e+00 397 2017 7 3.06730e+01 1.08888e+00 588 2017 8 3.10281e+01 1.46228e+00 578 2017 9 3.01300e+01 1.15259e+00 600 2017 10 2.71735e+01 2.16132e+00 476 2017 11 2.46362e+01 1.29965e+00 775 2017 12 2.26964e+01 1.65286e+00 672 2018 1 1.98506e+01 1.16216e+00 206 2018 2 2.42457e+01 1.39442e+00 628 2018 3 2.30823e+01 1.63494e+00 764 2018 4 2.61220e+01 1.30031e+00 694 2018 5 2.55797e+01 1.18581e+00 167 2018 6 2.95807e+01 1.28976e+00 334 2018 7 3.09473e+01 1.36145e+00 444 2018 8 3.02897e+01 9.31104e-01 709 2018 9 3.00674e+01 1.13444e+00 543 2018 10 2.80055e+01 1.22872e+00 627 2018 11 2.59268e+01 1.68175e+00 471 2018 12 2.23667e+01 1.27800e+00 512 2019 1 2.15616e+01 1.77988e+00 676 2019 2 2.38751e+01 1.72405e+00 617 2019 3 2.48528e+01 1.61431e+00 663 2019 4 2.61885e+01 1.26129e+00 645 2019 5 2.82488e+01 1.37476e+00 677 2019 6 3.07322e+01 1.36301e+00 564 2019 7 3.09410e+01 1.39635e+00 467 2019 8 3.07612e+01 1.27479e+00 340 2019 9 2.87173e+01 1.49726e+00 578 2019 10 2.82339e+01 9.94830e-01 666 2019 11 2.51577e+01 2.50974e+00 599 2019 12 2.29312e+01 1.14855e+00 482 2020 1 2.23946e+01 1.49032e+00 540 2020 2 2.30914e+01 1.69066e+00 519 2020 3 2.47792e+01 1.89499e+00 678 2020 4 2.76044e+01 1.44228e+00 615 2020 5 2.75046e+01 1.34290e+00 485 2020 6 3.03105e+01 1.34181e+00 420 2020 7 3.03946e+01 1.38589e+00 472 2020 8 3.10371e+01 1.38781e+00 584 2020 9 3.00528e+01 1.33788e+00 428 2020 10 2.87115e+01 1.31381e+00 421 2020 11 2.51026e+01 1.30113e+00 444 2020 12 2.20394e+01 1.37676e+00 497 2021 1 2.13597e+01 1.27347e+00 501 2021 2 2.33158e+01 2.09033e+00 658 2021 3 2.45039e+01 1.75757e+00 619 2021 4 2.55052e+01 1.87684e+00 604 2021 5 2.76095e+01 1.56155e+00 624 2021 6 2.86219e+01 1.32277e+00 336 2021 7 3.00223e+01 1.28214e+00 599 2021 8 3.06343e+01 1.47531e+00 512 2021 9 2.98361e+01 1.10074e+00 543 2021 10 2.82925e+01 9.75239e-01 515 2021 11 2.38025e+01 1.34619e+00 461 2021 12 2.38348e+01 1.29476e+00 819 2022 1 2.22421e+01 1.65168e+00 427 2022 2 2.27522e+01 1.63141e+00 588 2022 3 2.50163e+01 1.14035e+00 637 2022 4 2.59040e+01 1.39192e+00 360 2022 5 2.84553e+01 1.26871e+00 759 2022 6 3.00275e+01 1.32523e+00 470 2022 7 3.03057e+01 8.42257e-01 569 2022 8 3.04670e+01 8.68687e-01 586 2022 9 3.08964e+01 1.15313e+00 545 2022 10 2.65809e+01 1.41943e+00 580 2022 11 2.64230e+01 7.24571e-01 635 2022 12 2.35073e+01 1.94719e+00 568 2023 1 2.18734e+01 1.60483e+00 843 2023 2 2.41015e+01 1.45534e+00 809 2023 3 2.54252e+01 1.63256e+00 575 2023 4 2.67919e+01 1.33737e+00 506 2023 5 2.82062e+01 1.34247e+00 613 2023 6 3.01736e+01 1.07125e+00 339 2023 7 3.22797e+01 1.02415e+00 422 2023 8 3.11214e+01 1.21111e+00 438 2023 9 3.04085e+01 8.62666e-01 515 2023 10 2.70691e+01 1.80369e+00 520 2023 11 2.50650e+01 9.55876e-01 558 2023 12 2.26958e+01 2.09280e+00 258 2024 1 2.17817e+01 1.86055e+00 279 2024 2 2.09565e+01 1.18087e+00 556 2024 3 2.52203e+01 1.15767e+00 385 2024 4 2.40145e+01 7.77420e-01 43