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 5.03518e+00 4.83308e-01 292 2002 8 3.97551e+00 1.25157e-01 64 2002 9 3.99961e+00 9.20542e-01 346 2002 10 3.55944e+00 1.00494e+00 746 2002 11 4.28584e+00 8.02919e-01 710 2002 12 4.44109e+00 6.51065e-01 727 2003 1 4.77761e+00 7.27598e-01 482 2003 2 4.35977e+00 8.70502e-01 813 2003 3 3.33032e+00 4.87336e-01 544 2003 4 3.54679e+00 4.31044e-01 380 2003 5 3.86123e+00 5.49751e-01 210 2003 6 3.70855e+00 4.39188e-01 128 2003 7 4.97129e+00 1.00157e+00 190 2003 8 4.25014e+00 6.43952e-01 127 2003 9 3.99376e+00 8.97585e-01 259 2003 10 4.36813e+00 6.47217e-01 666 2003 11 3.09824e+00 7.05052e-01 946 2003 12 6.51117e+00 2.59852e+00 549 2004 1 4.13119e+00 1.18143e+00 770 2004 2 3.67794e+00 8.16415e-01 590 2004 3 2.67176e+00 3.80818e-01 195 2004 4 3.95259e+00 6.36707e-01 348 2004 5 3.69249e+00 1.07399e+00 174 2004 6 5.17753e+00 8.42074e-01 385 2004 7 4.83767e+00 1.24343e+00 279 2004 8 4.09749e+00 5.49749e-01 534 2004 9 3.22700e+00 3.36577e-01 385 2004 10 3.39218e+00 7.74630e-01 555 2004 11 2.65518e+00 4.79932e-01 499 2004 12 3.80570e+00 8.50565e-01 512 2005 1 4.04309e+00 1.07648e+00 725 2005 2 4.46120e+00 1.02271e+00 624 2005 3 3.56279e+00 4.75204e-01 265 2005 4 4.11464e+00 7.71200e-01 628 2005 5 4.25056e+00 6.84945e-01 370 2005 6 3.55205e+00 1.51048e+00 214 2005 7 4.30275e+00 9.66770e-01 249 2005 8 4.82646e+00 8.56438e-01 390 2005 9 3.94390e+00 3.46658e-01 585 2005 10 3.43031e+00 1.04162e+00 331 2005 11 7.66290e+00 3.02159e+00 499 2005 12 5.82708e+00 7.04586e-01 685 2006 1 4.72335e+00 7.97052e-01 638 2006 2 4.44503e+00 7.80751e-01 731 2006 3 4.46022e+00 8.39927e-01 949 2006 4 5.16830e+00 6.04651e-01 559 2006 5 4.84861e+00 9.95386e-01 632 2006 6 4.82187e+00 9.25006e-01 479 2006 7 5.50754e+00 1.08772e+00 269 2006 8 4.43448e+00 1.42964e+00 377 2006 9 4.88997e+00 8.74871e-01 469 2006 10 4.49290e+00 2.24666e+00 991 2006 11 4.83597e+00 1.61358e+00 588 2006 12 4.53324e+00 1.99146e+00 261 2007 1 4.11217e+00 2.33527e+00 440 2007 2 5.19916e+00 1.31774e+00 434 2007 3 4.04037e+00 1.40823e+00 315 2007 4 3.99376e+00 5.71561e-01 419 2007 5 5.82672e+00 4.51596e-01 316 2007 6 4.92739e+00 1.71994e+00 391 2007 7 5.87074e+00 2.05772e+00 396 2007 8 8.87479e+00 5.58962e+00 344 2007 9 9.26590e+00 3.87928e+00 281 2007 10 3.62325e+00 2.08205e+00 389 2007 11 4.75690e+00 2.28121e+00 888 2007 12 4.44421e+00 1.63256e+00 751 2008 1 4.20486e+00 2.34392e+00 364 2008 2 3.70916e+00 1.48672e+00 448 2008 3 4.61171e+00 1.01478e+00 569 2008 4 4.34773e+00 1.45457e+00 450 2008 5 4.07397e+00 1.14352e+00 442 2008 6 3.66839e+00 1.45743e+00 235 2008 7 6.25412e+00 1.08835e+00 178 2008 8 5.54733e+00 8.02653e-01 319 2008 9 2.63336e+00 2.81266e-01 221 2008 10 3.03430e+00 4.87708e-01 420 2008 11 4.67476e+00 1.66215e+00 935 2008 12 4.82160e+00 1.53986e+00 740 2009 1 4.68187e+00 7.29169e-01 449 2009 2 5.29568e+00 1.01746e+00 371 2009 3 4.14066e+00 1.00911e+00 539 2009 4 4.70091e+00 7.07273e-01 239 2009 5 3.58782e+00 7.09463e-01 241 2009 6 5.54532e+00 7.18839e-01 176 2009 7 4.94476e+00 4.65210e-01 397 2009 8 4.86426e+00 1.73211e+00 269 2009 9 5.62493e+00 9.11394e-01 336 2009 10 4.61995e+00 1.19596e+00 695 2009 11 3.54027e+00 7.07257e-01 651 2009 12 5.26837e+00 1.24170e+00 509 2010 1 5.56237e+00 1.23392e+00 345 2010 2 3.84507e+00 6.17912e-01 347 2010 3 3.16017e+00 5.25682e-01 405 2010 4 3.03939e+00 5.64254e-01 280 2010 5 5.06543e+00 1.14259e+00 387 2010 6 4.97359e+00 9.26645e-01 389 2010 7 3.01033e+00 8.85101e-01 182 2010 8 4.82477e+00 9.24841e-01 256 2010 9 2.73599e+00 9.86775e-01 147 2010 10 3.34416e+00 7.37164e-01 949 2010 11 4.71038e+00 2.04274e+00 831 2010 12 4.89297e+00 1.12951e+00 795 2011 1 4.28315e+00 6.59950e-01 649 2011 2 3.93657e+00 5.51968e-01 820 2011 3 4.06852e+00 1.01345e+00 700 2011 4 4.19114e+00 8.36051e-01 571 2011 5 4.28696e+00 1.08976e+00 595 2011 6 3.73106e+00 2.03549e+00 338 2011 7 4.48647e+00 7.34552e-01 412 2011 8 3.74266e+00 5.67865e-01 175 2011 9 4.24399e+00 5.54586e-01 558 2011 10 3.04763e+00 7.77127e-01 354 2011 11 2.97787e+00 4.38070e-01 900 2011 12 3.26580e+00 8.77732e-01 898 2012 1 5.82458e+00 9.16694e-01 738 2012 2 5.28428e+00 8.06464e-01 329 2012 3 2.83421e+00 3.32016e-01 594 2012 4 5.25789e+00 1.08788e+00 567 2012 5 3.95390e+00 8.29985e-01 291 2012 6 5.91280e+00 1.06655e+00 291 2012 7 5.97961e+00 9.05396e-01 236 2012 8 4.04857e+00 9.77957e-01 358 2012 9 4.18986e+00 9.18126e-01 369 2012 10 4.89225e+00 1.20778e+00 673 2012 11 6.40905e+00 1.14626e+00 844 2012 12 5.58802e+00 1.28468e+00 471 2013 1 4.33392e+00 1.64762e+00 390 2013 2 4.20714e+00 1.04271e+00 436 2013 3 4.83538e+00 8.01846e-01 647 2013 4 3.69602e+00 1.13175e+00 491 2013 5 5.66784e+00 1.07553e+00 320 2013 6 3.90879e+00 3.02436e-01 103 2013 7 6.12959e+00 4.28885e-01 180 2013 8 3.61584e+00 5.75028e-01 74 2013 9 5.32639e+00 1.70368e+00 247 2013 10 8.50133e+00 4.72292e+00 630 2013 11 2.95317e+00 4.43488e-01 546 2013 12 3.19966e+00 5.80917e-01 501 2014 1 5.61158e+00 2.57884e+00 375 2014 2 5.55355e+00 1.99493e+00 596 2014 3 5.23263e+00 6.67911e-01 453 2014 4 5.65048e+00 1.15866e+00 436 2014 5 5.17159e+00 1.73752e+00 307 2014 6 5.66431e+00 1.40871e+00 477 2014 7 5.62181e+00 1.01863e+00 241 2014 8 5.77483e+00 1.42946e+00 601 2014 9 4.12674e+00 1.05049e+00 273 2014 10 5.30025e+00 1.52745e+00 755 2014 11 5.29580e+00 1.98641e+00 618 2014 12 6.41694e+00 2.16932e+00 541 2015 1 4.54435e+00 5.91882e-01 685 2015 2 5.22788e+00 1.03153e+00 730 2015 3 4.35929e+00 1.59545e+00 411 2015 4 4.73131e+00 8.47888e-01 316 2015 5 5.19437e+00 2.26870e+00 430 2015 6 3.68250e+00 8.71697e-01 244 2015 7 5.58288e+00 9.54216e-01 344 2015 8 5.10017e+00 7.72831e-01 523 2015 9 5.44982e+00 9.49646e-01 230 2015 10 4.42894e+00 1.75807e+00 694 2015 11 2.54587e+00 3.61292e-01 540 2015 12 3.06895e+00 5.93554e-01 343 2016 1 4.23088e+00 1.37918e+00 332 2016 2 5.35157e+00 1.34940e+00 458 2016 3 5.09996e+00 1.22224e+00 412 2016 4 5.15181e+00 1.67626e+00 363 2016 5 5.77615e+00 1.81929e+00 332 2016 6 6.59402e+00 9.08545e-01 371 2016 7 6.77870e+00 1.18807e+00 318 2016 8 5.31822e+00 1.09768e+00 186 2016 9 5.30863e+00 1.04860e+00 332 2016 10 1.13511e+01 7.10432e+00 526 2016 11 3.61375e+00 6.75261e-01 667 2016 12 3.43170e+00 5.80764e-01 511 2017 1 6.63839e+00 4.32603e+00 404 2017 2 5.02648e+00 7.89283e-01 574 2017 3 5.11869e+00 1.93129e+00 553 2017 4 3.80703e+00 1.63180e+00 419 2017 5 4.43059e+00 1.38468e+00 452 2017 6 4.46417e+00 1.20368e+00 260 2017 7 3.83915e+00 9.87403e-01 137 2017 8 6.48213e+00 2.06377e+00 454 2017 9 4.68502e+00 9.06875e-01 642 2017 10 4.01773e+00 8.43604e-01 312 2017 11 1.41290e+01 4.88423e+00 358 2017 12 7.85468e+00 1.89527e+00 581 2018 1 5.42608e+00 1.72302e+00 478 2018 2 4.49428e+00 1.61930e+00 435 2018 3 4.75340e+00 1.18300e+00 604 2018 4 5.58319e+00 1.43618e+00 595 2018 5 4.27455e+00 3.06581e-01 64 2018 6 5.56191e+00 3.79722e-01 127 2018 7 5.41321e+00 1.06728e+00 539 2018 8 6.30661e+00 9.86457e-01 385 2018 9 8.14837e+00 3.13702e+00 344 2018 10 7.59577e+00 5.64759e+00 677 2018 11 1.36144e+01 5.33330e+00 273 2018 12 1.23739e+01 5.98571e+00 580 2019 1 5.29400e+00 1.19540e+00 641 2019 2 4.77059e+00 1.07532e+00 516 2019 3 4.96404e+00 1.22470e+00 669 2019 4 5.66312e+00 1.54065e+00 368 2019 5 5.76701e+00 1.57324e+00 357 2019 6 4.98833e+00 1.01208e+00 572 2019 7 7.02083e+00 2.11194e+00 198 2019 8 5.09166e+00 1.05409e+00 394 2019 9 4.14278e+00 1.52676e+00 403 2019 10 3.79690e+00 9.62701e-01 365 2019 11 6.02443e+00 4.94015e+00 675 2019 12 6.55589e+00 1.15994e+00 385 2020 1 4.24362e+00 1.58627e+00 511 2020 2 4.46257e+00 1.06626e+00 810 2020 3 3.19056e+00 1.02995e+00 486 2020 4 5.87650e+00 1.76467e+00 208 2020 5 4.39520e+00 8.69471e-01 355 2020 6 6.69526e+00 1.47470e+00 279 2020 7 5.88209e+00 1.19439e+00 300 2020 8 5.69680e+00 1.75108e+00 456 2020 9 3.73798e+00 5.19112e-01 295 2020 10 3.14999e+00 5.87929e-01 254 2020 11 2.88528e+00 2.08955e-01 189 2020 12 4.89311e+00 8.01557e-01 640 2021 1 5.47203e+00 1.40290e+00 485 2021 2 4.34236e+00 6.89029e-01 469 2021 3 4.11593e+00 1.51165e+00 458 2021 4 3.51563e+00 1.03006e+00 431 2021 5 4.50463e+00 1.42319e+00 334 2021 6 4.03645e+00 4.96265e-01 53 2021 7 4.32744e+00 8.91629e-01 132 2021 8 5.04000e+00 8.30031e-01 109 2021 9 5.18358e+00 1.57529e+00 338 2021 10 4.07610e+00 1.05741e+00 488 2021 11 5.14661e+00 2.01081e+00 536 2021 12 7.08040e+00 1.31361e+00 502 2022 1 4.93476e+00 7.80973e-01 518 2022 2 4.11958e+00 1.57798e+00 413 2022 3 4.37509e+00 2.06897e+00 153 2022 4 2.59265e+00 3.64979e-01 14 2022 5 6.12981e+00 2.06960e+00 419 2022 6 6.40962e+00 1.43467e+00 348 2022 7 7.24060e+00 2.77789e+00 312 2022 8 6.90631e+00 5.55340e+00 222 2022 9 1.60253e+01 6.08526e+00 321 2022 10 1.83554e+01 3.31802e+00 400 2022 11 7.17923e+00 5.19560e+00 255 2022 12 6.34746e+00 5.30958e+00 633 2023 1 6.26332e+00 2.32073e+00 636 2023 2 4.74535e+00 1.84012e+00 475 2023 3 4.73794e+00 5.60732e-01 384 2023 4 3.92379e+00 1.05882e+00 207 2023 5 5.54547e+00 1.00945e+00 715 2023 6 5.41455e+00 6.79376e-01 335 2023 7 5.26505e+00 6.52729e-01 223 2023 8 5.66857e+00 1.94535e+00 451 2023 9 4.98750e+00 1.24813e+00 521 2023 10 4.26260e+00 2.03538e+00 721 2023 11 2.81168e+00 3.90313e-01 739 2023 12 2.90254e+00 5.24891e-01 357 2024 1 3.96702e+00 1.18083e+00 244 2024 2 4.65471e+00 8.78259e-01 584 2024 3 5.20346e+00 6.66204e-01 414 2024 4 nan nan 0