YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.75712e+01 5.77301e-02 16 2000 3 1.99795e+01 1.15126e+00 159 2000 4 2.16509e+01 1.55657e+00 144 2000 5 2.66015e+01 2.41523e+00 142 2000 6 2.90475e+01 7.52495e-01 160 2000 7 3.02848e+01 8.76453e-01 133 2000 8 2.98793e+01 6.54165e-01 64 2000 9 2.65968e+01 1.92685e+00 124 2000 10 2.31491e+01 1.53636e+00 167 2000 11 2.15266e+01 2.41639e+00 128 2000 12 1.71176e+01 1.47779e-01 17 2001 1 nan nan 0 2001 2 1.71580e+01 1.00374e+00 50 2001 3 1.78732e+01 2.21716e+00 104 2001 4 2.11598e+01 2.38298e+00 96 2001 5 2.53509e+01 1.52216e+00 208 2001 6 2.80062e+01 6.81795e-02 16 2001 7 2.87123e+01 7.53610e-01 88 2001 8 2.82757e+01 1.19449e+00 117 2001 9 2.70489e+01 2.36533e+00 109 2001 10 2.26876e+01 1.55326e+00 198 2001 11 1.93732e+01 9.35750e-01 183 2001 12 1.87373e+01 1.71654e+00 172 2002 1 1.40858e+01 1.51870e-01 18 2002 2 1.47756e+01 2.26570e-01 32 2002 3 1.56735e+01 4.05942e+00 62 2002 4 2.36161e+01 2.97063e+00 96 2002 5 2.55609e+01 2.54694e+00 153 2002 6 2.85126e+01 7.68432e-01 122 2002 7 2.96252e+01 1.65320e+00 447 2002 8 2.91541e+01 1.34606e+00 514 2002 9 2.82297e+01 1.28581e+00 483 2002 10 2.60041e+01 2.24688e+00 503 2002 11 1.94084e+01 2.38243e+00 316 2002 12 1.49150e+01 9.59951e-01 187 2003 1 1.31071e+01 1.08935e+00 194 2003 2 1.51112e+01 1.42644e+00 279 2003 3 1.99685e+01 1.99642e+00 374 2003 4 2.12244e+01 2.29511e+00 460 2003 5 2.57586e+01 1.64874e+00 552 2003 6 2.76401e+01 1.80623e+00 413 2003 7 2.86210e+01 1.27728e+00 439 2003 8 2.86103e+01 1.68255e+00 482 2003 9 2.73466e+01 1.45970e+00 663 2003 10 2.29931e+01 1.28195e+00 649 2003 11 2.12833e+01 1.75214e+00 602 2003 12 1.56032e+01 5.56907e-01 28 2004 1 1.40485e+01 8.23026e-01 131 2004 2 1.33811e+01 1.33723e+00 122 2004 3 1.86718e+01 1.76260e+00 576 2004 4 2.06693e+01 2.07240e+00 525 2004 5 2.61129e+01 2.31893e+00 758 2004 6 2.85597e+01 1.60007e+00 467 2004 7 2.98174e+01 1.38295e+00 695 2004 8 2.90000e+01 1.46787e+00 568 2004 9 2.68947e+01 1.80984e+00 564 2004 10 2.44644e+01 1.76409e+00 617 2004 11 2.07573e+01 2.40715e+00 451 2004 12 1.74505e+01 1.55789e+00 181 2005 1 1.35671e+01 1.54534e+00 129 2005 2 1.48324e+01 1.50734e+00 273 2005 3 1.67012e+01 2.15048e+00 407 2005 4 2.00496e+01 1.52308e+00 548 2005 5 2.49282e+01 2.67229e+00 707 2005 6 2.83557e+01 1.67440e+00 593 2005 7 2.93447e+01 1.70147e+00 606 2005 8 2.93686e+01 1.49235e+00 435 2005 9 2.77657e+01 1.17229e+00 683 2005 10 2.43160e+01 2.56560e+00 727 2005 11 1.98224e+01 1.97493e+00 388 2005 12 1.58296e+01 9.57942e-01 115 2006 1 1.54228e+01 1.32474e+00 293 2006 2 1.38798e+01 1.20113e+00 307 2006 3 1.79669e+01 1.53102e+00 523 2006 4 2.27414e+01 2.43358e+00 674 2006 5 2.54275e+01 2.09676e+00 718 2006 6 2.85890e+01 1.42661e+00 694 2006 7 3.02359e+01 1.15062e+00 445 2006 8 2.99600e+01 1.29351e+00 578 2006 9 2.78496e+01 1.49797e+00 670 2006 10 2.43800e+01 2.57740e+00 603 2006 11 1.84610e+01 2.01249e+00 410 2006 12 1.58107e+01 1.21466e+00 175 2007 1 1.44181e+01 1.52513e+00 144 2007 2 1.36616e+01 1.49994e+00 190 2007 3 1.79269e+01 2.24528e+00 643 2007 4 2.07649e+01 1.80610e+00 560 2007 5 2.44755e+01 1.37306e+00 810 2007 6 2.85035e+01 1.48350e+00 536 2007 7 2.87974e+01 1.66050e+00 440 2007 8 3.00523e+01 1.42538e+00 677 2007 9 2.81781e+01 1.56945e+00 630 2007 10 2.48196e+01 2.36667e+00 555 2007 11 1.92309e+01 1.36394e+00 560 2007 12 1.82455e+01 1.64725e+00 287 2008 1 1.49767e+01 1.59493e+00 212 2008 2 1.64552e+01 1.43516e+00 377 2008 3 1.74415e+01 1.85108e+00 458 2008 4 2.19826e+01 2.02051e+00 546 2008 5 2.52183e+01 2.41454e+00 690 2008 6 2.94203e+01 1.45779e+00 613 2008 7 2.92662e+01 1.47564e+00 654 2008 8 2.86118e+01 1.63792e+00 434 2008 9 2.67002e+01 1.68673e+00 529 2008 10 2.33866e+01 1.93374e+00 695 2008 11 1.89386e+01 1.46660e+00 367 2008 12 1.64280e+01 6.94755e-01 140 2009 1 1.52450e+01 1.86940e+00 278 2009 2 1.36748e+01 1.17113e+00 272 2009 3 1.84438e+01 2.31362e+00 391 2009 4 2.15354e+01 2.20905e+00 518 2009 5 2.56834e+01 1.95361e+00 550 2009 6 2.88963e+01 1.77736e+00 732 2009 7 2.91717e+01 1.86922e+00 632 2009 8 2.85285e+01 1.69958e+00 521 2009 9 2.81092e+01 1.17611e+00 507 2009 10 2.54882e+01 2.92056e+00 414 2009 11 1.93291e+01 1.87090e+00 431 2009 12 1.45072e+01 1.41379e+00 132 2010 1 1.42625e+01 1.69529e+00 121 2010 2 1.19228e+01 9.44199e-01 140 2010 3 1.52034e+01 2.13847e+00 445 2010 4 2.15711e+01 1.58693e+00 666 2010 5 2.66818e+01 2.29730e+00 742 2010 6 3.03552e+01 1.54661e+00 751 2010 7 2.99289e+01 1.62602e+00 694 2010 8 2.99381e+01 1.67412e+00 375 2010 9 2.94104e+01 1.61134e+00 781 2010 10 2.35540e+01 1.33168e+00 834 2010 11 1.91732e+01 1.45268e+00 534 2010 12 1.51125e+01 2.07393e+00 277 2011 1 1.17342e+01 8.49060e-01 232 2011 2 1.50105e+01 3.90830e+00 271 2011 3 1.95505e+01 2.36294e+00 557 2011 4 2.30877e+01 1.88128e+00 709 2011 5 2.54543e+01 2.07649e+00 881 2011 6 2.98953e+01 1.22810e+00 786 2011 7 3.01691e+01 1.38165e+00 637 2011 8 3.03945e+01 1.37804e+00 708 2011 9 2.68743e+01 1.06295e+00 607 2011 10 2.29872e+01 1.95455e+00 705 2011 11 1.80951e+01 8.65973e-01 401 2011 12 1.55644e+01 9.02040e-01 163 2012 1 1.51229e+01 1.01890e+00 257 2012 2 1.52207e+01 1.30235e+00 84 2012 3 2.10089e+01 2.64796e+00 518 2012 4 2.29619e+01 1.46301e+00 704 2012 5 2.69522e+01 1.57949e+00 765 2012 6 2.77411e+01 1.11405e+00 547 2012 7 2.92490e+01 1.18862e+00 457 2012 8 2.88336e+01 1.51554e+00 376 2012 9 2.72203e+01 1.66451e+00 686 2012 10 2.41477e+01 1.73069e+00 794 2012 11 1.80573e+01 1.42517e+00 476 2012 12 1.73841e+01 1.16292e+00 291 2013 1 1.63600e+01 1.28615e+00 187 2013 2 1.53664e+01 1.43070e+00 215 2013 3 1.60316e+01 1.47275e+00 573 2013 4 2.00733e+01 1.69576e+00 282 2013 5 2.45210e+01 2.72703e+00 666 2013 6 2.84887e+01 1.18681e+00 588 2013 7 2.81305e+01 1.47885e+00 325 2013 8 2.82467e+01 2.14003e+00 496 2013 9 2.86296e+01 1.56066e+00 596 2013 10 2.36726e+01 2.21122e+00 547 2013 11 2.05896e+01 2.00742e+00 354 2013 12 1.72878e+01 1.58514e+00 165 2014 1 1.20417e+01 8.71147e-01 189 2014 2 1.38980e+01 2.22233e+00 264 2014 3 1.67941e+01 1.58194e+00 397 2014 4 1.98792e+01 1.83968e+00 415 2014 5 2.45508e+01 2.08366e+00 561 2014 6 2.90316e+01 1.96061e+00 630 2014 7 2.90742e+01 1.31417e+00 634 2014 8 2.95911e+01 1.16447e+00 535 2014 9 2.89340e+01 2.20372e+00 519 2014 10 2.49118e+01 1.89601e+00 792 2014 11 1.77095e+01 2.09551e+00 385 2014 12 1.69559e+01 1.69327e+00 246 2015 1 1.44362e+01 9.37166e-01 178 2015 2 1.34391e+01 1.03439e+00 302 2015 3 1.96132e+01 2.21355e+00 342 2015 4 2.24885e+01 1.89004e+00 306 2015 5 2.59188e+01 2.33171e+00 607 2015 6 2.93755e+01 1.56048e+00 664 2015 7 2.93376e+01 2.03801e+00 459 2015 8 2.96026e+01 1.47838e+00 595 2015 9 2.76711e+01 1.25184e+00 462 2015 10 2.38675e+01 1.61419e+00 534 2015 11 2.13111e+01 2.47886e+00 478 2015 12 1.75228e+01 1.46129e+00 210 2016 1 1.43104e+01 1.22198e+00 174 2016 2 1.49630e+01 1.83291e+00 420 2016 3 1.82776e+01 1.88504e+00 436 2016 4 2.15375e+01 1.84044e+00 566 2016 5 2.53345e+01 1.78852e+00 499 2016 6 2.91526e+01 1.19543e+00 608 2016 7 3.05889e+01 9.70484e-01 608 2016 8 2.98897e+01 1.48481e+00 552 2016 9 2.92643e+01 1.23396e+00 720 2016 10 2.53517e+01 1.60677e+00 827 2016 11 2.06829e+01 2.28340e+00 458 2016 12 1.80291e+01 1.38490e+00 264 2017 1 1.71454e+01 1.41228e+00 157 2017 2 1.74546e+01 1.74712e+00 406 2017 3 1.90472e+01 2.61246e+00 543 2017 4 2.31273e+01 1.92212e+00 669 2017 5 2.46783e+01 1.88548e+00 614 2017 6 2.75984e+01 1.75473e+00 313 2017 7 2.98340e+01 1.91558e+00 597 2017 8 2.99789e+01 1.43173e+00 451 2017 9 2.73892e+01 1.92499e+00 545 2017 10 2.48179e+01 2.41713e+00 688 2017 11 2.02924e+01 1.70494e+00 563 2017 12 1.76100e+01 2.40316e+00 164 2018 1 1.33905e+01 9.14840e-01 103 2018 2 1.93046e+01 2.92880e+00 368 2018 3 1.85298e+01 2.06683e+00 555 2018 4 2.12949e+01 1.20541e+00 616 2018 5 2.58890e+01 1.80353e+00 562 2018 6 2.97801e+01 1.59116e+00 650 2018 7 2.98410e+01 1.18784e+00 586 2018 8 2.95061e+01 1.66866e+00 518 2018 9 2.93658e+01 1.52895e+00 625 2018 10 2.61785e+01 2.70047e+00 723 2018 11 2.16055e+01 1.70548e+00 99 2018 12 1.55341e+01 1.68287e+00 204 2019 1 1.59572e+01 1.74273e+00 251 2019 2 1.81991e+01 2.33248e+00 109 2019 3 1.77152e+01 1.88816e+00 466 2019 4 2.19325e+01 1.45364e+00 426 2019 5 2.78078e+01 2.40375e+00 815 2019 6 2.94604e+01 1.34827e+00 437 2019 7 2.96724e+01 1.51440e+00 603 2019 8 2.98383e+01 1.27353e+00 464 2019 9 2.95603e+01 1.26333e+00 890 2019 10 2.71559e+01 2.72191e+00 568 2019 11 1.92423e+01 1.85530e+00 324 2019 12 1.66983e+01 1.34885e+00 233 2020 1 1.61698e+01 1.61294e+00 429 2020 2 1.58144e+01 1.38480e+00 363 2020 3 2.16943e+01 3.91683e+00 549 2020 4 2.32725e+01 9.69006e-01 445 2020 5 2.45530e+01 1.70612e+00 635 2020 6 2.82534e+01 1.57356e+00 503 2020 7 2.94455e+01 1.16450e+00 574 2020 8 3.09043e+01 1.16509e+00 464 2020 9 2.92825e+01 2.64796e+00 368 2020 10 2.44671e+01 1.24401e+00 706 2020 11 2.14078e+01 1.59593e+00 619 2020 12 1.67545e+01 1.63051e+00 202 2021 1 1.54223e+01 1.07041e+00 208 2021 2 1.45892e+01 1.98613e+00 372 2021 3 1.81160e+01 2.06213e+00 448 2021 4 2.08262e+01 1.60891e+00 582 2021 5 2.49627e+01 1.71761e+00 641 2021 6 2.76503e+01 1.29861e+00 346 2021 7 2.99060e+01 1.50968e+00 457 2021 8 3.05609e+01 1.18008e+00 435 2021 9 2.73615e+01 1.54728e+00 535 2021 10 2.50062e+01 1.85116e+00 570 2021 11 1.85345e+01 1.45880e+00 577 2021 12 1.74903e+01 1.27909e+00 367 2022 1 1.47233e+01 2.18078e+00 360 2022 2 1.55931e+01 2.86894e+00 451 2022 3 1.87297e+01 1.67732e+00 745 2022 4 2.25555e+01 1.48717e+00 545 2022 5 2.64086e+01 1.25499e+00 650 2022 6 2.98304e+01 1.71458e+00 698 2022 7 3.01086e+01 1.37781e+00 551 2022 8 3.02749e+01 1.32600e+00 459 2022 9 2.83278e+01 1.32107e+00 634 2022 10 2.31998e+01 1.69873e+00 726 2022 11 2.10773e+01 2.51209e+00 393 2022 12 1.82752e+01 1.81884e+00 402 2023 1 1.58533e+01 1.41737e+00 617 2023 2 1.70628e+01 2.50280e+00 422 2023 3 1.96442e+01 2.49476e+00 342 2023 4 2.24001e+01 1.34163e+00 480 2023 5 2.50435e+01 2.12797e+00 563 2023 6 2.89191e+01 1.95132e+00 545 2023 7 3.06430e+01 1.36423e+00 534 2023 8 3.14241e+01 1.08033e+00 799 2023 9 2.88716e+01 1.18265e+00 678 2023 10 2.39620e+01 2.01178e+00 707 2023 11 1.90339e+01 1.53330e+00 553 2023 12 1.47024e+01 1.53632e+00 336 2024 1 1.30800e+01 1.39877e+00 344 2024 2 1.47337e+01 1.55675e+00 488 2024 3 1.87571e+01 1.42803e+00 400 2024 4 2.14381e+01 9.15775e-01 48