YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.80256e+01 1.87873e-01 32 2000 3 2.04362e+01 1.27593e+00 178 2000 4 2.18449e+01 1.20903e+00 128 2000 5 2.63797e+01 2.02406e+00 216 2000 6 2.78392e+01 8.99745e-01 99 2000 7 2.96608e+01 8.44358e-01 156 2000 8 2.97232e+01 3.60261e-01 64 2000 9 2.59663e+01 1.51766e+00 80 2000 10 2.22477e+01 1.05652e+00 221 2000 11 2.03056e+01 2.93067e+00 127 2000 12 1.47653e+01 1.56674e+00 35 2001 1 1.25412e+01 6.29748e-01 48 2001 2 1.69608e+01 1.22191e+00 69 2001 3 1.63900e+01 1.90112e+00 128 2001 4 2.13265e+01 2.09817e+00 191 2001 5 2.54348e+01 1.44359e+00 215 2001 6 2.69433e+01 1.08370e+00 80 2001 7 2.90413e+01 1.53290e+00 48 2001 8 2.93710e+01 1.20969e+00 161 2001 9 2.64918e+01 1.46818e+00 112 2001 10 2.25385e+01 1.52197e+00 141 2001 11 1.90500e+01 1.10263e+00 190 2001 12 1.84235e+01 2.40640e+00 141 2002 1 nan nan 0 2002 2 1.52651e+01 1.27298e+00 144 2002 3 1.36255e+01 1.14696e+00 32 2002 4 2.45315e+01 1.80551e+00 180 2002 5 2.58940e+01 1.84073e+00 185 2002 6 2.85957e+01 7.95653e-01 85 2002 7 2.92787e+01 1.60142e+00 513 2002 8 2.89573e+01 1.09683e+00 495 2002 9 2.82685e+01 9.28286e-01 440 2002 10 2.66310e+01 1.82035e+00 575 2002 11 1.94661e+01 2.62707e+00 512 2002 12 1.43406e+01 8.13854e-01 296 2003 1 1.19964e+01 1.32452e+00 504 2003 2 1.41290e+01 1.43242e+00 257 2003 3 2.04046e+01 2.02876e+00 321 2003 4 2.16937e+01 2.29611e+00 635 2003 5 2.66256e+01 1.59260e+00 594 2003 6 2.84818e+01 1.69112e+00 449 2003 7 2.94950e+01 1.28321e+00 399 2003 8 2.88285e+01 1.48937e+00 463 2003 9 2.76934e+01 1.74033e+00 498 2003 10 2.33115e+01 1.19159e+00 599 2003 11 2.09261e+01 1.74104e+00 740 2003 12 1.48600e+01 1.77414e+00 328 2004 1 1.31892e+01 1.34320e+00 309 2004 2 1.32473e+01 8.10428e-01 170 2004 3 1.86890e+01 1.76236e+00 570 2004 4 2.06286e+01 1.64772e+00 726 2004 5 2.63886e+01 1.78004e+00 937 2004 6 2.92188e+01 1.47511e+00 625 2004 7 2.98878e+01 1.39046e+00 564 2004 8 2.96766e+01 1.41849e+00 545 2004 9 2.69817e+01 2.16407e+00 540 2004 10 2.47557e+01 1.83002e+00 685 2004 11 2.12896e+01 2.70765e+00 529 2004 12 1.53953e+01 2.17274e+00 306 2005 1 1.36595e+01 1.95070e+00 289 2005 2 1.34712e+01 1.67377e+00 270 2005 3 1.68099e+01 2.04258e+00 483 2005 4 2.07309e+01 1.30491e+00 658 2005 5 2.52142e+01 2.20660e+00 800 2005 6 2.81641e+01 1.52272e+00 679 2005 7 2.96900e+01 1.65668e+00 644 2005 8 2.97505e+01 1.53712e+00 618 2005 9 2.77304e+01 1.17368e+00 698 2005 10 2.42174e+01 2.72095e+00 804 2005 11 1.91584e+01 1.92793e+00 496 2005 12 1.45151e+01 1.95279e+00 337 2006 1 1.45730e+01 1.24186e+00 389 2006 2 1.45480e+01 1.40183e+00 420 2006 3 1.82896e+01 1.54899e+00 697 2006 4 2.33064e+01 1.99451e+00 734 2006 5 2.51547e+01 1.60417e+00 736 2006 6 2.85689e+01 1.13174e+00 740 2006 7 3.01555e+01 1.24717e+00 551 2006 8 3.04042e+01 1.01112e+00 839 2006 9 2.82281e+01 1.53364e+00 671 2006 10 2.42434e+01 2.13831e+00 858 2006 11 1.85868e+01 1.77954e+00 340 2006 12 1.55870e+01 1.60926e+00 237 2007 1 1.40787e+01 1.63497e+00 219 2007 2 1.31073e+01 1.53282e+00 317 2007 3 1.87362e+01 1.71310e+00 701 2007 4 2.12893e+01 1.83932e+00 559 2007 5 2.47279e+01 8.93432e-01 817 2007 6 2.77803e+01 1.68047e+00 670 2007 7 2.95734e+01 1.52645e+00 498 2007 8 3.03276e+01 1.29658e+00 713 2007 9 2.80668e+01 1.70700e+00 684 2007 10 2.56052e+01 1.53270e+00 491 2007 11 1.87110e+01 1.50634e+00 722 2007 12 1.65526e+01 1.37708e+00 277 2008 1 1.28396e+01 2.00250e+00 242 2008 2 1.56699e+01 1.25984e+00 422 2008 3 1.74571e+01 1.42821e+00 656 2008 4 2.18803e+01 1.36414e+00 765 2008 5 2.52583e+01 1.91452e+00 715 2008 6 2.92084e+01 1.30584e+00 692 2008 7 2.92307e+01 1.46771e+00 478 2008 8 2.83466e+01 1.85846e+00 486 2008 9 2.72950e+01 1.91959e+00 686 2008 10 2.33336e+01 2.18637e+00 837 2008 11 1.68988e+01 2.02120e+00 545 2008 12 1.49266e+01 1.50282e+00 305 2009 1 1.38029e+01 2.17268e+00 439 2009 2 1.38115e+01 1.56774e+00 468 2009 3 1.81138e+01 2.47126e+00 533 2009 4 2.18300e+01 2.11247e+00 647 2009 5 2.59946e+01 1.82932e+00 597 2009 6 2.86741e+01 1.60210e+00 726 2009 7 2.86511e+01 1.38835e+00 606 2009 8 2.93452e+01 1.41130e+00 602 2009 9 2.79978e+01 1.07287e+00 615 2009 10 2.50257e+01 2.62560e+00 599 2009 11 1.93236e+01 1.08016e+00 423 2009 12 1.38011e+01 2.13768e+00 162 2010 1 1.10782e+01 2.70635e+00 402 2010 2 1.17483e+01 1.05884e+00 378 2010 3 1.54638e+01 1.83659e+00 507 2010 4 2.19806e+01 1.54321e+00 694 2010 5 2.67696e+01 2.42110e+00 715 2010 6 3.06446e+01 1.38079e+00 788 2010 7 2.97606e+01 1.44279e+00 717 2010 8 3.01636e+01 1.41347e+00 361 2010 9 2.91214e+01 1.20257e+00 728 2010 10 2.41708e+01 9.97918e-01 925 2010 11 1.93613e+01 1.40344e+00 755 2010 12 1.39978e+01 3.11971e+00 466 2011 1 1.09714e+01 1.08270e+00 433 2011 2 1.43593e+01 2.43265e+00 283 2011 3 1.92293e+01 1.65265e+00 558 2011 4 2.34073e+01 1.85015e+00 815 2011 5 2.56474e+01 1.66749e+00 941 2011 6 2.96613e+01 1.44186e+00 682 2011 7 2.98864e+01 1.20653e+00 676 2011 8 3.05156e+01 1.08014e+00 737 2011 9 2.75758e+01 8.76856e-01 638 2011 10 2.32412e+01 1.73707e+00 783 2011 11 1.79073e+01 1.06582e+00 543 2011 12 1.56450e+01 1.03819e+00 278 2012 1 1.53566e+01 1.58500e+00 441 2012 2 1.53292e+01 1.08005e+00 200 2012 3 2.14589e+01 2.52900e+00 694 2012 4 2.31098e+01 1.20560e+00 867 2012 5 2.67229e+01 1.28995e+00 803 2012 6 2.71014e+01 1.32059e+00 499 2012 7 2.96601e+01 1.43557e+00 576 2012 8 2.86496e+01 1.36781e+00 443 2012 9 2.77845e+01 1.70821e+00 542 2012 10 2.43705e+01 2.16822e+00 683 2012 11 1.83672e+01 1.32823e+00 598 2012 12 1.65915e+01 1.87962e+00 337 2013 1 1.50373e+01 1.13305e+00 282 2013 2 1.56519e+01 1.20013e+00 315 2013 3 1.60997e+01 1.48345e+00 615 2013 4 2.11935e+01 1.62340e+00 536 2013 5 2.46466e+01 2.34063e+00 573 2013 6 2.85333e+01 1.55642e+00 568 2013 7 2.85490e+01 1.96511e+00 364 2013 8 2.99205e+01 1.49996e+00 496 2013 9 2.92225e+01 1.91073e+00 772 2013 10 2.43921e+01 1.88165e+00 701 2013 11 1.92706e+01 2.63392e+00 384 2013 12 1.57847e+01 1.59071e+00 279 2014 1 1.22645e+01 1.29266e+00 287 2014 2 1.41783e+01 1.81511e+00 277 2014 3 1.69652e+01 1.48262e+00 489 2014 4 2.08733e+01 1.87368e+00 625 2014 5 2.56872e+01 1.62033e+00 650 2014 6 2.87717e+01 1.73636e+00 563 2014 7 2.95445e+01 1.32924e+00 630 2014 8 2.97697e+01 1.33246e+00 717 2014 9 2.87746e+01 1.42610e+00 407 2014 10 2.47388e+01 1.59346e+00 818 2014 11 1.70325e+01 2.33258e+00 536 2014 12 1.52219e+01 1.28179e+00 383 2015 1 1.37593e+01 1.50519e+00 420 2015 2 1.34653e+01 1.06470e+00 467 2015 3 1.91837e+01 2.43431e+00 511 2015 4 2.31698e+01 1.97731e+00 364 2015 5 2.67377e+01 1.84242e+00 969 2015 6 2.98961e+01 1.50102e+00 582 2015 7 2.93861e+01 1.52570e+00 545 2015 8 3.02558e+01 1.18333e+00 547 2015 9 2.75879e+01 1.69959e+00 355 2015 10 2.38456e+01 1.42872e+00 661 2015 11 2.12053e+01 3.34157e+00 444 2015 12 1.73052e+01 1.06111e+00 224 2016 1 1.41923e+01 1.56591e+00 397 2016 2 1.45293e+01 1.69791e+00 445 2016 3 1.90502e+01 1.81704e+00 460 2016 4 2.22806e+01 1.71548e+00 638 2016 5 2.60146e+01 1.52630e+00 733 2016 6 2.90638e+01 1.45265e+00 740 2016 7 3.12321e+01 1.24598e+00 875 2016 8 3.04953e+01 1.39343e+00 581 2016 9 2.94079e+01 1.16576e+00 628 2016 10 2.52457e+01 2.02658e+00 737 2016 11 2.03648e+01 2.44695e+00 608 2016 12 1.70056e+01 1.90699e+00 335 2017 1 1.55186e+01 1.79250e+00 248 2017 2 1.77234e+01 2.07078e+00 532 2017 3 1.87525e+01 2.24815e+00 725 2017 4 2.34958e+01 1.33499e+00 768 2017 5 2.50985e+01 1.54657e+00 595 2017 6 2.85243e+01 1.81509e+00 340 2017 7 3.02697e+01 1.60502e+00 468 2017 8 2.99338e+01 1.32972e+00 567 2017 9 2.79881e+01 1.63650e+00 698 2017 10 2.45377e+01 2.37603e+00 841 2017 11 1.98129e+01 1.24504e+00 657 2017 12 1.63497e+01 2.36543e+00 395 2018 1 1.16859e+01 1.73534e+00 259 2018 2 1.84676e+01 4.13899e+00 312 2018 3 1.85495e+01 1.86543e+00 603 2018 4 2.13679e+01 1.42806e+00 600 2018 5 2.56782e+01 1.87964e+00 643 2018 6 2.93168e+01 1.63825e+00 507 2018 7 3.03307e+01 1.05631e+00 529 2018 8 3.01105e+01 1.33533e+00 551 2018 9 3.01622e+01 1.20448e+00 825 2018 10 2.65284e+01 2.54894e+00 772 2018 11 1.88823e+01 1.89367e+00 321 2018 12 1.52691e+01 1.61158e+00 293 2019 1 1.46850e+01 1.94957e+00 429 2019 2 1.65068e+01 2.76503e+00 204 2019 3 1.83311e+01 1.33213e+00 520 2019 4 2.22243e+01 1.57098e+00 577 2019 5 2.77263e+01 2.02725e+00 875 2019 6 2.91134e+01 1.71166e+00 431 2019 7 2.96285e+01 1.72847e+00 486 2019 8 3.01182e+01 1.04564e+00 582 2019 9 2.90507e+01 1.19956e+00 943 2019 10 2.64458e+01 2.30256e+00 647 2019 11 1.82168e+01 2.19437e+00 531 2019 12 1.56917e+01 1.63581e+00 404 2020 1 1.50953e+01 1.42522e+00 497 2020 2 1.53049e+01 1.20815e+00 432 2020 3 2.10643e+01 3.70703e+00 567 2020 4 2.33895e+01 9.70797e-01 522 2020 5 2.45402e+01 1.26293e+00 577 2020 6 2.92433e+01 1.40620e+00 514 2020 7 2.99794e+01 1.28019e+00 502 2020 8 3.07923e+01 1.03738e+00 467 2020 9 2.87185e+01 2.04368e+00 426 2020 10 2.50019e+01 1.41777e+00 647 2020 11 2.12965e+01 1.85575e+00 774 2020 12 1.49796e+01 1.70843e+00 765 2021 1 1.37290e+01 1.46941e+00 451 2021 2 1.52259e+01 2.07305e+00 387 2021 3 1.83420e+01 1.50549e+00 476 2021 4 2.12422e+01 1.51985e+00 656 2021 5 2.56913e+01 1.59303e+00 718 2021 6 2.79031e+01 1.59089e+00 446 2021 7 2.96241e+01 1.14945e+00 449 2021 8 3.01999e+01 1.42470e+00 430 2021 9 2.83207e+01 1.00474e+00 567 2021 10 2.50426e+01 1.91240e+00 669 2021 11 1.84488e+01 1.44173e+00 767 2021 12 1.70924e+01 1.27215e+00 451 2022 1 1.49792e+01 2.59238e+00 692 2022 2 1.52493e+01 2.43679e+00 503 2022 3 1.91729e+01 1.02241e+00 664 2022 4 2.31078e+01 1.41090e+00 480 2022 5 2.66985e+01 1.27955e+00 702 2022 6 2.98086e+01 1.47712e+00 673 2022 7 3.06231e+01 1.15697e+00 549 2022 8 3.11385e+01 1.25117e+00 495 2022 9 2.80430e+01 2.00181e+00 620 2022 10 2.31517e+01 1.62602e+00 912 2022 11 2.09139e+01 2.37463e+00 518 2022 12 1.62055e+01 3.13184e+00 772 2023 1 1.43586e+01 9.90272e-01 595 2023 2 1.72567e+01 2.08473e+00 565 2023 3 2.06440e+01 2.08261e+00 602 2023 4 2.27004e+01 1.15665e+00 512 2023 5 2.56513e+01 1.67774e+00 592 2023 6 2.76441e+01 1.78902e+00 547 2023 7 3.03887e+01 8.83014e-01 543 2023 8 3.10535e+01 1.07164e+00 706 2023 9 2.93068e+01 1.41423e+00 679 2023 10 2.33743e+01 1.49326e+00 763 2023 11 1.98954e+01 1.79102e+00 566 2023 12 1.43196e+01 1.41333e+00 407 2024 1 1.30817e+01 1.04132e+00 334 2024 2 1.50763e+01 1.04646e+00 541 2024 3 1.97107e+01 1.16013e+00 416 2024 4 2.13230e+01 3.27823e-01 64