YEAR MONTH MEAN STDEV COUNT 2002 1 nan nan 0 2002 2 nan nan 0 2002 3 nan nan 0 2002 4 nan nan 0 2002 5 nan nan 0 2002 6 nan nan 0 2002 7 1.77457e+01 2.00084e+01 340 2002 8 9.83014e+00 2.07532e+01 363 2002 9 1.35193e+01 1.39401e+01 471 2002 10 9.91822e+00 9.73769e+00 537 2002 11 7.49095e+00 9.96256e+00 370 2002 12 2.74082e+00 1.01129e+00 488 2003 1 2.72814e+00 7.95469e-01 317 2003 2 6.94099e+00 8.85096e+00 372 2003 3 3.83072e+00 3.05891e+00 525 2003 4 3.87565e+00 1.91522e+00 347 2003 5 4.42800e+00 2.43545e+00 297 2003 6 1.08078e+01 1.17071e+01 232 2003 7 5.68398e+00 6.33277e+00 576 2003 8 3.76089e+00 3.82414e+00 625 2003 9 4.87746e+00 3.48723e+00 758 2003 10 7.80374e+00 7.73514e+00 455 2003 11 8.68325e+00 3.22676e+00 473 2003 12 8.82544e+00 2.74888e+00 363 2004 1 9.96224e+00 3.91666e+00 248 2004 2 6.95799e+00 7.47635e+00 483 2004 3 1.66815e+01 1.30471e+01 412 2004 4 8.39634e+00 5.53822e+00 378 2004 5 2.67434e+00 1.36041e+00 431 2004 6 4.39162e+00 2.95585e+00 223 2004 7 2.07393e+00 6.30095e-01 186 2004 8 3.91040e+00 5.80185e+00 484 2004 9 4.69059e+00 4.39500e+00 717 2004 10 4.46814e+00 4.14812e+00 290 2004 11 7.56776e+00 4.03870e+00 621 2004 12 4.59047e+00 2.06721e+00 297 2005 1 2.69386e+00 3.99243e-01 242 2005 2 4.62691e+00 3.89419e+00 400 2005 3 6.40954e+00 6.26768e+00 684 2005 4 7.67809e+00 8.57268e+00 699 2005 5 4.91397e+00 2.65487e+00 377 2005 6 1.44967e+01 1.77919e+01 309 2005 7 1.01645e+01 1.82402e+01 321 2005 8 4.26890e+00 3.01979e+00 584 2005 9 5.95200e+00 9.64109e+00 1036 2005 10 1.04313e+01 1.70741e+01 297 2005 11 5.25223e+00 4.73293e+00 395 2005 12 3.66094e+00 1.19474e+00 459 2006 1 1.15899e+01 1.12830e+01 505 2006 2 3.71412e+00 3.81202e+00 399 2006 3 3.61690e+00 2.66005e+00 640 2006 4 4.03034e+00 4.53679e+00 549 2006 5 4.87564e+00 2.83284e+00 144 2006 6 3.79499e+00 1.80935e+00 256 2006 7 4.72560e+00 1.73593e+00 160 2006 8 7.46124e+00 9.98453e+00 730 2006 9 1.04735e+01 1.64717e+01 645 2006 10 3.59372e+00 1.65296e+00 609 2006 11 4.39458e+00 1.59166e+00 236 2006 12 4.90261e+00 1.08892e+00 300 2007 1 1.63664e+01 2.39488e+01 403 2007 2 6.05778e+00 6.60547e+00 703 2007 3 7.71433e+00 9.41776e+00 677 2007 4 1.23412e+01 1.76408e+01 302 2007 5 1.00865e+01 1.37752e+01 620 2007 6 1.23846e+01 2.12828e+01 358 2007 7 5.92007e+00 9.44739e+00 403 2007 8 9.34366e+00 1.74025e+01 561 2007 9 1.28883e+01 1.77522e+01 723 2007 10 7.56269e+00 8.71669e+00 401 2007 11 5.59611e+00 2.36222e+00 452 2007 12 3.84125e+00 9.63392e-01 215 2008 1 6.77046e+00 2.32156e+00 197 2008 2 4.74461e+00 1.74845e+00 459 2008 3 5.28960e+00 3.86727e+00 688 2008 4 7.10196e+00 4.37325e+00 513 2008 5 6.70232e+00 8.78279e+00 431 2008 6 9.06305e+00 1.37778e+01 348 2008 7 3.23471e+00 2.68856e+00 448 2008 8 3.46242e+00 5.04059e+00 505 2008 9 1.14997e+01 1.86385e+01 518 2008 10 7.54468e+00 9.91130e+00 666 2008 11 6.44686e+00 5.68072e+00 410 2008 12 4.32636e+00 1.21886e+00 364 2009 1 4.49148e+00 3.09633e+00 507 2009 2 4.07351e+00 2.74338e+00 423 2009 3 2.02022e+01 1.86375e+01 410 2009 4 9.25689e+00 1.24454e+01 618 2009 5 1.71303e+01 2.89570e+01 163 2009 6 3.90257e+00 1.16911e+00 132 2009 7 7.32766e+00 1.02114e+01 600 2009 8 1.34186e+01 1.93296e+01 487 2009 9 5.00405e+00 4.65104e+00 600 2009 10 1.75143e+01 2.33462e+01 347 2009 11 1.19502e+01 1.68173e+01 294 2009 12 4.92902e+00 2.66017e+00 329 2010 1 4.39353e+00 1.87694e+00 348 2010 2 4.82336e+00 1.96419e+00 576 2010 3 6.92970e+00 1.44197e+01 500 2010 4 7.64370e+00 6.78221e+00 527 2010 5 3.69983e+00 2.72977e+00 495 2010 6 9.05236e+00 1.46224e+01 303 2010 7 5.56231e+00 7.37293e+00 597 2010 8 4.93641e+00 2.53816e+00 519 2010 9 1.08394e+01 1.75799e+01 607 2010 10 7.22942e+00 5.14745e+00 699 2010 11 4.37356e+00 1.34232e+00 270 2010 12 3.07486e+00 1.52782e+00 315 2011 1 3.87403e+00 2.03282e+00 364 2011 2 4.56513e+00 1.52930e+00 386 2011 3 1.03163e+01 9.95768e+00 574 2011 4 2.89923e+00 5.90149e-01 205 2011 5 6.87891e+00 7.55775e+00 369 2011 6 3.38587e+00 2.25616e+00 220 2011 7 4.13865e+00 6.77849e+00 646 2011 8 7.22899e+00 1.12586e+01 856 2011 9 3.05292e+00 2.46826e+00 594 2011 10 5.00819e+00 1.72130e+00 511 2011 11 6.84767e+00 7.78986e+00 399 2011 12 4.74514e+00 1.50975e+00 397 2012 1 2.35091e+00 8.10576e-01 540 2012 2 4.14489e+00 1.55045e+00 499 2012 3 5.02116e+00 4.32655e+00 725 2012 4 3.86489e+00 1.91458e+00 775 2012 5 4.67789e+00 5.68417e+00 471 2012 6 8.07546e+00 1.48550e+01 638 2012 7 5.71681e+00 5.77222e+00 414 2012 8 4.20491e+00 2.43027e+00 421 2012 9 9.33166e+00 1.52794e+01 634 2012 10 6.45042e+00 1.26599e+01 367 2012 11 3.92069e+00 1.64249e+00 428 2012 12 2.79669e+00 2.11742e+00 232 2013 1 3.26789e+00 5.37636e-01 479 2013 2 2.82356e+00 1.26018e+00 429 2013 3 9.53097e+00 7.60956e+00 492 2013 4 6.48902e+00 1.02932e+01 741 2013 5 3.03012e+00 3.48037e+00 336 2013 6 6.80275e+00 7.50413e+00 298 2013 7 3.19394e+00 9.06978e-01 225 2013 8 4.74691e+00 9.12013e+00 505 2013 9 4.74028e+00 3.47252e+00 790 2013 10 4.17889e+00 2.71449e+00 511 2013 11 6.57305e+00 2.08989e+00 458 2013 12 3.63331e+00 8.22689e-01 149 2014 1 2.85786e+00 7.91086e-01 508 2014 2 3.08197e+00 2.25468e+00 417 2014 3 1.77581e+01 2.03517e+01 441 2014 4 1.11811e+01 6.42831e+00 497 2014 5 3.67457e+00 3.44636e+00 677 2014 6 9.06311e+00 1.44721e+01 584 2014 7 1.36700e+01 1.77583e+01 313 2014 8 8.33975e+00 1.48592e+01 608 2014 9 2.74638e+00 1.20175e+00 555 2014 10 4.42305e+00 2.80806e+00 670 2014 11 7.78935e+00 9.05615e+00 408 2014 12 2.23826e+00 1.00961e+00 114 2015 1 4.50475e+00 2.42254e+00 532 2015 2 3.68527e+00 7.27054e-01 297 2015 3 5.52404e+00 8.43309e+00 573 2015 4 5.76265e+00 6.82379e+00 501 2015 5 9.47713e+00 1.64875e+01 379 2015 6 4.11956e+00 3.59438e+00 240 2015 7 7.95588e+00 1.67248e+01 425 2015 8 3.10931e+00 2.53631e+00 644 2015 9 4.08151e+00 3.41246e+00 603 2015 10 1.00848e+01 7.72008e+00 678 2015 11 5.54350e+00 2.49056e+00 597 2015 12 5.58664e+00 1.46686e+00 343 2016 1 1.17945e+01 1.30947e+01 383 2016 2 7.33414e+00 4.73471e+00 489 2016 3 3.72492e+00 1.75928e+00 256 2016 4 8.82443e+00 1.22236e+01 540 2016 5 5.36324e+00 5.33236e+00 298 2016 6 9.28109e+00 1.23485e+01 576 2016 7 3.23587e+00 2.90070e+00 602 2016 8 3.77763e+00 3.05518e+00 825 2016 9 1.07010e+01 1.70882e+01 465 2016 10 4.37902e+00 2.30262e+00 509 2016 11 5.75080e+00 4.09179e+00 566 2016 12 8.18383e+00 2.32328e+00 305 2017 1 4.46889e+00 2.29970e+00 447 2017 2 4.52661e+00 2.16259e+00 455 2017 3 6.08332e+00 3.33092e+00 519 2017 4 4.85185e+00 2.27431e+00 174 2017 5 1.60819e+01 2.07889e+01 187 2017 6 4.22684e+00 4.11133e+00 439 2017 7 7.58331e+00 1.14682e+01 412 2017 8 5.19867e+00 8.09168e+00 492 2017 9 8.01914e+00 1.31059e+01 490 2017 10 1.09095e+01 9.43438e+00 773 2017 11 3.71791e+00 4.61664e+00 238 2017 12 3.40092e+00 8.71461e-01 345 2018 1 2.88096e+00 1.05050e+00 493 2018 2 4.03673e+00 8.53691e-01 231 2018 3 1.50475e+01 8.42101e+00 282 2018 4 3.42106e+01 2.07382e+01 281 2018 5 5.00479e+00 8.43419e+00 426 2018 6 3.13697e+00 1.50158e+00 356 2018 7 5.58139e+00 5.89128e+00 534 2018 8 6.36921e+00 1.38964e+01 489 2018 9 4.25147e+00 1.07057e+01 545 2018 10 6.24396e+00 5.10103e+00 475 2018 11 4.45740e+00 2.23750e+00 427 2018 12 3.22888e+00 1.24402e+00 573 2019 1 4.05592e+00 7.69480e-01 453 2019 2 4.70341e+00 1.96524e+00 466 2019 3 6.11947e+00 7.22613e+00 741 2019 4 1.18557e+01 1.63948e+01 360 2019 5 1.02127e+01 1.53629e+01 338 2019 6 3.79326e+00 3.90961e+00 256 2019 7 7.31786e+00 1.10138e+01 692 2019 8 1.22075e+01 1.64702e+01 402 2019 9 1.05611e+01 1.15682e+01 778 2019 10 6.95057e+00 2.77569e+00 256 2019 11 6.16490e+00 2.86496e+00 411 2019 12 7.68699e+00 7.38625e+00 266 2020 1 7.22151e+00 5.00029e+00 352 2020 2 7.42626e+00 4.46253e+00 601 2020 3 8.16027e+00 2.65704e+00 416 2020 4 9.44245e+00 5.22598e+00 300 2020 5 6.59201e+00 9.78478e+00 468 2020 6 7.58126e+00 9.90441e+00 504 2020 7 2.25118e+00 4.80994e-01 510 2020 8 4.22404e+00 1.30529e+00 318 2020 9 6.06808e+00 5.56189e+00 624 2020 10 8.32583e+00 1.75891e+01 564 2020 11 6.52352e+00 4.31530e+00 565 2020 12 5.48799e+00 7.12589e-01 192 2021 1 5.09776e+00 2.25715e+00 345 2021 2 5.58254e+00 4.98471e+00 302 2021 3 4.30023e+00 1.63029e+00 878 2021 4 7.52246e+00 7.66047e+00 617 2021 5 6.19855e+00 8.18794e+00 815 2021 6 4.13480e+00 5.11519e+00 415 2021 7 3.71224e+00 2.03996e+00 374 2021 8 4.08335e+00 3.02419e+00 412 2021 9 7.43807e+00 6.08042e+00 582 2021 10 9.30815e+00 1.70167e+01 458 2021 11 7.22350e+00 5.77816e+00 686 2021 12 7.20651e+00 1.21811e+01 195 2022 1 2.82528e+00 5.79179e-01 256 2022 2 3.46163e+00 1.81618e+00 556 2022 3 6.10707e+00 4.53962e+00 540 2022 4 1.28408e+01 1.90143e+01 194 2022 5 3.19359e+00 2.30525e+00 320 2022 6 6.94970e+00 1.14642e+01 505 2022 7 3.04867e+00 2.80210e+00 742 2022 8 2.26241e+00 1.74139e+00 720 2022 9 6.59542e+00 4.63871e+00 589 2022 10 8.62286e+00 1.26158e+01 660 2022 11 4.59155e+00 5.76948e+00 798 2022 12 4.43046e+00 3.38289e+00 558 2023 1 1.81227e+00 1.97845e+00 438 2023 2 1.74780e+00 1.00468e+00 313 2023 3 3.66233e+00 3.87902e+00 654 2023 4 5.02855e+00 9.36831e+00 501 2023 5 1.17452e+01 1.99275e+01 713 2023 6 4.27313e+00 4.01981e+00 349 2023 7 1.20489e+01 1.90434e+01 749 2023 8 1.37600e+01 1.71638e+01 669 2023 9 1.16572e+01 2.21862e+01 639 2023 10 2.83561e+00 4.20031e+00 615 2023 11 9.15791e+00 4.78403e+00 425 2023 12 8.80219e+00 1.11444e+01 424 2024 1 6.79004e+00 7.27334e+00 393 2024 2 6.32930e+00 3.46503e+00 559 2024 3 4.42054e+00 3.45275e+00 712 2024 4 nan nan 0