YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.80138e+01 1.92301e-01 16 2000 3 1.94868e+01 1.59558e+00 152 2000 4 2.19199e+01 1.27350e+00 136 2000 5 2.57797e+01 2.10656e+00 168 2000 6 2.84999e+01 1.07460e+00 103 2000 7 3.01589e+01 1.06588e+00 112 2000 8 2.91600e+01 3.50288e-01 24 2000 9 2.68830e+01 9.17491e-01 73 2000 10 2.27887e+01 1.63833e+00 175 2000 11 2.23171e+01 2.58966e+00 74 2000 12 1.59600e+01 2.06057e-01 16 2001 1 1.27925e+01 1.11032e-01 16 2001 2 1.72441e+01 1.83305e+00 49 2001 3 1.64372e+01 9.49972e-01 56 2001 4 2.14198e+01 1.94059e+00 128 2001 5 2.50438e+01 1.60908e+00 183 2001 6 2.69748e+01 1.23521e+00 48 2001 7 2.78808e+01 5.39247e-01 36 2001 8 2.84057e+01 1.74487e+00 142 2001 9 2.70457e+01 1.80217e+00 69 2001 10 2.21140e+01 1.81766e+00 137 2001 11 1.97733e+01 9.71573e-01 189 2001 12 1.97066e+01 1.61100e+00 84 2002 1 1.54753e+01 1.07521e-01 16 2002 2 1.51792e+01 5.12474e-01 92 2002 3 1.69364e+01 3.73254e+00 32 2002 4 2.35386e+01 2.23672e+00 171 2002 5 2.62776e+01 1.92195e+00 135 2002 6 2.80521e+01 1.03575e+00 122 2002 7 2.94943e+01 1.22690e+00 444 2002 8 2.94123e+01 1.02503e+00 452 2002 9 2.83843e+01 9.98098e-01 407 2002 10 2.71488e+01 2.03999e+00 495 2002 11 2.02318e+01 2.31194e+00 259 2002 12 1.46748e+01 8.87629e-01 164 2003 1 1.28749e+01 9.66562e-01 169 2003 2 1.44488e+01 1.26860e+00 215 2003 3 2.00903e+01 1.97100e+00 255 2003 4 2.13143e+01 1.79820e+00 485 2003 5 2.56996e+01 1.41605e+00 650 2003 6 2.79508e+01 1.74562e+00 435 2003 7 2.95738e+01 1.16892e+00 416 2003 8 2.85896e+01 9.17694e-01 291 2003 9 2.81165e+01 1.01540e+00 487 2003 10 2.37286e+01 1.04379e+00 532 2003 11 2.18482e+01 1.88588e+00 605 2003 12 1.54842e+01 9.80584e-01 50 2004 1 1.40129e+01 1.02462e+00 248 2004 2 1.35005e+01 1.12749e+00 116 2004 3 1.83286e+01 1.94104e+00 545 2004 4 2.01009e+01 1.85038e+00 467 2004 5 2.57705e+01 2.22889e+00 824 2004 6 2.93314e+01 1.44921e+00 590 2004 7 3.00556e+01 1.57325e+00 477 2004 8 2.95177e+01 1.50877e+00 580 2004 9 2.71715e+01 1.90747e+00 494 2004 10 2.51014e+01 1.84709e+00 531 2004 11 2.13651e+01 2.38010e+00 369 2004 12 1.75348e+01 2.14582e+00 84 2005 1 1.37751e+01 1.53719e+00 167 2005 2 1.48098e+01 1.23618e+00 312 2005 3 1.67103e+01 1.88730e+00 408 2005 4 2.04229e+01 1.58121e+00 535 2005 5 2.54604e+01 2.40124e+00 664 2005 6 2.80114e+01 1.84950e+00 617 2005 7 2.90296e+01 1.91016e+00 644 2005 8 2.95204e+01 1.76012e+00 561 2005 9 2.81432e+01 1.34800e+00 626 2005 10 2.51140e+01 2.48614e+00 592 2005 11 2.07162e+01 1.57725e+00 372 2005 12 1.55540e+01 1.26129e+00 160 2006 1 1.57012e+01 1.34875e+00 231 2006 2 1.47427e+01 1.90056e+00 225 2006 3 1.85002e+01 1.20086e+00 668 2006 4 2.29880e+01 2.23629e+00 643 2006 5 2.55056e+01 1.82304e+00 699 2006 6 2.85020e+01 1.57807e+00 696 2006 7 3.00979e+01 1.51425e+00 512 2006 8 3.02376e+01 1.14960e+00 565 2006 9 2.83972e+01 1.51637e+00 645 2006 10 2.45128e+01 2.55720e+00 510 2006 11 1.85076e+01 1.54765e+00 341 2006 12 1.59840e+01 1.23637e+00 91 2007 1 1.34319e+01 9.62576e-01 83 2007 2 1.38091e+01 1.78391e+00 233 2007 3 1.85696e+01 1.84409e+00 561 2007 4 2.01808e+01 2.26534e+00 518 2007 5 2.43450e+01 8.25143e-01 767 2007 6 2.76723e+01 1.61521e+00 475 2007 7 2.97407e+01 1.94803e+00 453 2007 8 2.97914e+01 1.58742e+00 626 2007 9 2.84994e+01 1.55058e+00 478 2007 10 2.54828e+01 1.72931e+00 421 2007 11 1.94455e+01 1.48164e+00 497 2007 12 1.71270e+01 1.12834e+00 180 2008 1 1.45960e+01 1.52553e+00 111 2008 2 1.60538e+01 1.46268e+00 285 2008 3 1.72343e+01 1.92339e+00 425 2008 4 2.15770e+01 1.91961e+00 532 2008 5 2.48224e+01 1.63773e+00 609 2008 6 2.89572e+01 1.36649e+00 620 2008 7 2.92876e+01 1.39254e+00 630 2008 8 2.84680e+01 1.05654e+00 292 2008 9 2.72540e+01 1.72157e+00 559 2008 10 2.34324e+01 1.87717e+00 573 2008 11 1.76849e+01 1.90047e+00 477 2008 12 1.59255e+01 1.33916e+00 196 2009 1 1.55634e+01 1.81295e+00 290 2009 2 1.41262e+01 1.30009e+00 360 2009 3 1.79696e+01 2.49704e+00 402 2009 4 2.13743e+01 1.59776e+00 466 2009 5 2.56111e+01 1.64923e+00 587 2009 6 2.88621e+01 2.27651e+00 711 2009 7 2.88550e+01 1.48660e+00 478 2009 8 2.91556e+01 1.74119e+00 526 2009 9 2.78775e+01 1.26515e+00 443 2009 10 2.56728e+01 2.89700e+00 504 2009 11 1.92635e+01 1.40520e+00 355 2009 12 1.38921e+01 1.19019e+00 116 2010 1 1.30258e+01 1.96289e+00 231 2010 2 1.17987e+01 1.50191e+00 319 2010 3 1.50679e+01 1.72006e+00 377 2010 4 2.09449e+01 1.81334e+00 464 2010 5 2.65826e+01 2.21837e+00 721 2010 6 3.05078e+01 1.51201e+00 688 2010 7 2.97192e+01 1.50758e+00 598 2010 8 2.92278e+01 1.70322e+00 401 2010 9 2.89279e+01 1.65730e+00 647 2010 10 2.41155e+01 1.13067e+00 760 2010 11 1.98084e+01 1.41102e+00 589 2010 12 1.39226e+01 1.99624e+00 176 2011 1 1.16196e+01 1.23527e+00 296 2011 2 1.40674e+01 2.51099e+00 150 2011 3 1.86380e+01 1.80103e+00 480 2011 4 2.27063e+01 1.50787e+00 727 2011 5 2.51093e+01 1.35707e+00 844 2011 6 2.94357e+01 1.38496e+00 748 2011 7 3.01360e+01 9.26296e-01 403 2011 8 3.05967e+01 8.16907e-01 686 2011 9 2.76718e+01 9.19184e-01 753 2011 10 2.29835e+01 2.01542e+00 512 2011 11 1.86596e+01 1.12257e+00 288 2011 12 1.57548e+01 7.06308e-01 305 2012 1 1.51747e+01 1.31863e+00 262 2012 2 1.57610e+01 1.68537e+00 119 2012 3 2.09723e+01 2.42471e+00 527 2012 4 2.32262e+01 1.12401e+00 840 2012 5 2.70519e+01 1.55519e+00 739 2012 6 2.74230e+01 1.48375e+00 463 2012 7 2.86810e+01 1.07125e+00 569 2012 8 2.88541e+01 1.50736e+00 397 2012 9 2.75376e+01 1.45214e+00 579 2012 10 2.49217e+01 1.76614e+00 580 2012 11 1.84331e+01 1.47041e+00 485 2012 12 1.72205e+01 8.68512e-01 227 2013 1 1.60442e+01 1.27253e+00 140 2013 2 1.60370e+01 1.42618e+00 288 2013 3 1.58908e+01 1.30000e+00 507 2013 4 2.06679e+01 1.64337e+00 378 2013 5 2.45347e+01 2.07845e+00 620 2013 6 2.87003e+01 1.40477e+00 554 2013 7 2.78808e+01 1.63200e+00 236 2013 8 2.95005e+01 1.64891e+00 485 2013 9 2.90469e+01 1.23490e+00 565 2013 10 2.52198e+01 1.97569e+00 565 2013 11 2.04592e+01 2.33021e+00 385 2013 12 1.64154e+01 1.79324e+00 271 2014 1 1.33340e+01 1.54974e+00 188 2014 2 1.40629e+01 1.79908e+00 201 2014 3 1.76540e+01 1.60133e+00 418 2014 4 2.05309e+01 1.76235e+00 480 2014 5 2.48041e+01 1.92045e+00 535 2014 6 2.83725e+01 1.86552e+00 586 2014 7 2.91274e+01 9.18294e-01 595 2014 8 3.03226e+01 1.06748e+00 585 2014 9 2.89051e+01 1.58308e+00 481 2014 10 2.48117e+01 1.66238e+00 743 2014 11 1.63716e+01 1.81426e+00 285 2014 12 1.60152e+01 1.08497e+00 325 2015 1 1.43375e+01 1.07489e+00 237 2015 2 1.39878e+01 1.40284e+00 337 2015 3 1.89880e+01 2.21692e+00 342 2015 4 2.22956e+01 1.68437e+00 292 2015 5 2.63560e+01 2.26638e+00 776 2015 6 2.95921e+01 1.35273e+00 557 2015 7 2.98768e+01 1.20953e+00 496 2015 8 3.01706e+01 1.44385e+00 568 2015 9 2.75839e+01 1.18550e+00 350 2015 10 2.42046e+01 1.53272e+00 670 2015 11 2.21011e+01 2.67639e+00 433 2015 12 1.80265e+01 1.27511e+00 213 2016 1 1.41989e+01 1.20783e+00 214 2016 2 1.49991e+01 1.95239e+00 263 2016 3 1.84884e+01 1.58978e+00 299 2016 4 2.18233e+01 1.46414e+00 578 2016 5 2.53489e+01 1.57104e+00 668 2016 6 2.93989e+01 1.26291e+00 572 2016 7 3.07495e+01 1.10948e+00 782 2016 8 2.98000e+01 1.24776e+00 469 2016 9 2.89631e+01 1.03321e+00 528 2016 10 2.54748e+01 1.52974e+00 624 2016 11 2.07994e+01 2.32523e+00 566 2016 12 1.79099e+01 9.06990e-01 239 2017 1 1.63924e+01 1.58137e+00 247 2017 2 1.79517e+01 1.64779e+00 453 2017 3 1.88790e+01 1.85142e+00 535 2017 4 2.26488e+01 1.70013e+00 534 2017 5 2.48531e+01 1.69618e+00 524 2017 6 2.82207e+01 1.49989e+00 280 2017 7 2.99406e+01 1.88506e+00 564 2017 8 3.00235e+01 1.51343e+00 515 2017 9 2.76301e+01 1.72484e+00 503 2017 10 2.51730e+01 2.10593e+00 537 2017 11 2.05213e+01 1.61042e+00 604 2017 12 1.67746e+01 2.56409e+00 185 2018 1 1.23567e+01 1.38813e+00 147 2018 2 1.91444e+01 2.49122e+00 250 2018 3 1.82535e+01 1.91548e+00 553 2018 4 2.13202e+01 1.14681e+00 646 2018 5 2.60755e+01 1.94900e+00 609 2018 6 2.92320e+01 1.89578e+00 583 2018 7 3.01891e+01 1.49770e+00 490 2018 8 2.91594e+01 1.21656e+00 379 2018 9 2.94834e+01 1.42757e+00 625 2018 10 2.62502e+01 2.19598e+00 731 2018 11 1.93213e+01 2.09737e+00 202 2018 12 1.57868e+01 1.57195e+00 186 2019 1 1.53438e+01 1.87709e+00 435 2019 2 1.72675e+01 1.73836e+00 195 2019 3 1.83288e+01 1.46177e+00 430 2019 4 2.15718e+01 1.52305e+00 471 2019 5 2.73693e+01 2.00164e+00 706 2019 6 2.93988e+01 1.55122e+00 499 2019 7 3.00223e+01 1.30992e+00 491 2019 8 3.01988e+01 1.01119e+00 454 2019 9 2.95278e+01 1.26781e+00 713 2019 10 2.74164e+01 1.84410e+00 522 2019 11 1.92332e+01 2.08958e+00 473 2019 12 1.64987e+01 1.41745e+00 248 2020 1 1.57850e+01 1.43524e+00 437 2020 2 1.59526e+01 1.37742e+00 414 2020 3 2.17598e+01 3.44646e+00 599 2020 4 2.30715e+01 1.11101e+00 471 2020 5 2.47964e+01 1.71135e+00 629 2020 6 2.89359e+01 1.45231e+00 420 2020 7 2.95408e+01 1.03457e+00 410 2020 8 3.06983e+01 1.08900e+00 375 2020 9 2.86353e+01 2.25306e+00 403 2020 10 2.51366e+01 1.56826e+00 515 2020 11 2.13227e+01 1.71457e+00 673 2020 12 1.54111e+01 1.50704e+00 480 2021 1 1.45561e+01 1.42605e+00 318 2021 2 1.59307e+01 2.23587e+00 328 2021 3 1.81152e+01 1.15112e+00 407 2021 4 2.12226e+01 1.61013e+00 579 2021 5 2.50773e+01 1.43281e+00 639 2021 6 2.79315e+01 1.29459e+00 322 2021 7 2.97266e+01 1.69874e+00 439 2021 8 2.99111e+01 1.13860e+00 380 2021 9 2.77121e+01 1.54819e+00 464 2021 10 2.62223e+01 1.51578e+00 498 2021 11 1.90001e+01 1.44777e+00 675 2021 12 1.78369e+01 1.47577e+00 444 2022 1 1.52980e+01 3.01670e+00 542 2022 2 1.52275e+01 2.76125e+00 438 2022 3 1.90006e+01 1.59638e+00 674 2022 4 2.27845e+01 1.41129e+00 355 2022 5 2.61219e+01 1.18945e+00 679 2022 6 2.99520e+01 1.86420e+00 625 2022 7 3.05210e+01 1.31102e+00 580 2022 8 3.04480e+01 1.24100e+00 529 2022 9 2.84652e+01 1.93143e+00 573 2022 10 2.36290e+01 1.91893e+00 727 2022 11 2.15924e+01 2.16387e+00 407 2022 12 1.81568e+01 1.86919e+00 424 2023 1 1.59143e+01 1.25475e+00 578 2023 2 1.77412e+01 1.84339e+00 542 2023 3 2.00793e+01 1.99539e+00 590 2023 4 2.29553e+01 1.03240e+00 448 2023 5 2.47599e+01 2.06451e+00 555 2023 6 2.84909e+01 1.85337e+00 496 2023 7 3.10028e+01 1.01464e+00 634 2023 8 3.12791e+01 9.46280e-01 614 2023 9 2.97525e+01 1.40105e+00 617 2023 10 2.35497e+01 1.66375e+00 721 2023 11 2.00648e+01 1.64487e+00 505 2023 12 1.44091e+01 1.25001e+00 320 2024 1 1.38452e+01 1.28426e+00 379 2024 2 1.58802e+01 1.49590e+00 505 2024 3 1.95499e+01 1.37244e+00 383 2024 4 2.04947e+01 8.65432e-01 48