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 2.94062e+01 3.99029e+00 292 2002 8 2.80459e+01 3.51039e+00 64 2002 9 3.05208e+01 3.41695e+00 346 2002 10 3.40830e+01 7.11805e+00 746 2002 11 2.56062e+01 6.74540e+00 710 2002 12 2.33317e+01 4.09806e+00 727 2003 1 2.43376e+01 4.94716e+00 482 2003 2 2.51430e+01 4.43401e+00 813 2003 3 3.19036e+01 4.69805e+00 544 2003 4 3.27830e+01 4.78021e+00 380 2003 5 3.37293e+01 2.99550e+00 210 2003 6 3.37815e+01 1.37491e+00 128 2003 7 2.39289e+01 4.15605e+00 190 2003 8 3.12184e+01 1.49792e+00 127 2003 9 3.08622e+01 5.62407e+00 259 2003 10 2.84062e+01 3.53097e+00 666 2003 11 2.81690e+01 6.94436e+00 946 2003 12 1.85312e+01 4.54208e+00 549 2004 1 2.60332e+01 6.23569e+00 770 2004 2 2.74323e+01 4.64712e+00 590 2004 3 3.45089e+01 4.23118e+00 195 2004 4 2.78357e+01 3.49536e+00 348 2004 5 3.45292e+01 4.16935e+00 174 2004 6 2.95885e+01 5.63679e+00 385 2004 7 2.82341e+01 3.65753e+00 279 2004 8 3.26645e+01 4.27254e+00 534 2004 9 3.27603e+01 4.16445e+00 385 2004 10 3.41864e+01 5.13049e+00 555 2004 11 3.55642e+01 3.61559e+00 499 2004 12 2.40460e+01 9.52321e+00 512 2005 1 2.40568e+01 6.86056e+00 725 2005 2 2.30524e+01 6.88341e+00 624 2005 3 3.16628e+01 4.91943e+00 265 2005 4 3.16885e+01 4.58689e+00 628 2005 5 3.03155e+01 5.26262e+00 370 2005 6 3.20617e+01 7.52460e+00 214 2005 7 3.01136e+01 3.69095e+00 249 2005 8 2.82749e+01 3.86147e+00 390 2005 9 3.47694e+01 5.03866e+00 585 2005 10 3.21215e+01 5.97539e+00 331 2005 11 1.38918e+01 6.09894e+00 499 2005 12 2.28545e+01 4.22372e+00 685 2006 1 2.29975e+01 4.71086e+00 638 2006 2 2.67727e+01 4.37509e+00 731 2006 3 2.81300e+01 4.81594e+00 949 2006 4 3.19697e+01 6.63932e+00 559 2006 5 3.50614e+01 4.72199e+00 632 2006 6 3.21467e+01 5.76347e+00 479 2006 7 3.10375e+01 3.75444e+00 269 2006 8 3.23544e+01 5.82912e+00 377 2006 9 3.06132e+01 4.70824e+00 469 2006 10 3.40218e+01 6.32797e+00 991 2006 11 2.93888e+01 6.33651e+00 588 2006 12 2.67025e+01 7.51399e+00 261 2007 1 3.16451e+01 1.03821e+01 440 2007 2 2.38827e+01 4.82353e+00 434 2007 3 2.69091e+01 5.86330e+00 315 2007 4 3.08224e+01 6.27305e+00 419 2007 5 3.11894e+01 3.75612e+00 316 2007 6 2.98375e+01 6.24921e+00 391 2007 7 3.08263e+01 6.20307e+00 396 2007 8 2.33147e+01 5.63001e+00 344 2007 9 2.01559e+01 7.26496e+00 281 2007 10 3.07306e+01 7.13283e+00 389 2007 11 2.67892e+01 8.61553e+00 888 2007 12 2.35785e+01 8.20805e+00 751 2008 1 2.35099e+01 1.00389e+01 364 2008 2 2.57154e+01 6.83362e+00 448 2008 3 2.35489e+01 4.73114e+00 569 2008 4 3.09311e+01 5.06284e+00 450 2008 5 3.14554e+01 6.10551e+00 442 2008 6 2.86784e+01 7.08078e+00 235 2008 7 2.72374e+01 3.61927e+00 178 2008 8 2.64649e+01 4.30664e+00 319 2008 9 3.67584e+01 6.21405e+00 221 2008 10 3.70436e+01 4.52212e+00 420 2008 11 2.93516e+01 1.00763e+01 935 2008 12 2.34748e+01 6.45262e+00 740 2009 1 2.57055e+01 5.59208e+00 449 2009 2 2.14532e+01 6.65432e+00 371 2009 3 2.79625e+01 4.89079e+00 539 2009 4 2.91921e+01 3.60242e+00 239 2009 5 3.25939e+01 6.02489e+00 241 2009 6 2.50746e+01 2.84733e+00 176 2009 7 2.67566e+01 4.56393e+00 397 2009 8 2.66032e+01 4.79066e+00 269 2009 9 2.65829e+01 3.46536e+00 336 2009 10 3.04183e+01 5.48606e+00 695 2009 11 3.42937e+01 5.38231e+00 651 2009 12 2.63862e+01 8.02780e+00 509 2010 1 1.99756e+01 8.73833e+00 345 2010 2 1.81346e+01 4.58189e+00 347 2010 3 2.23879e+01 4.24319e+00 405 2010 4 2.90640e+01 4.97513e+00 280 2010 5 2.90008e+01 4.02380e+00 387 2010 6 3.02110e+01 3.91302e+00 389 2010 7 3.50671e+01 5.00755e+00 182 2010 8 2.98314e+01 4.24341e+00 256 2010 9 3.62639e+01 8.58022e+00 147 2010 10 2.87710e+01 4.20880e+00 949 2010 11 2.51592e+01 9.39840e+00 831 2010 12 2.24605e+01 6.57746e+00 795 2011 1 2.32526e+01 6.92932e+00 649 2011 2 2.46066e+01 4.33676e+00 820 2011 3 2.96510e+01 6.45788e+00 700 2011 4 3.00684e+01 4.87000e+00 571 2011 5 2.94534e+01 5.99824e+00 595 2011 6 3.26066e+01 3.16602e+00 338 2011 7 2.79611e+01 5.48947e+00 412 2011 8 2.64824e+01 4.32950e+00 175 2011 9 2.88784e+01 4.64718e+00 558 2011 10 3.14893e+01 7.79895e+00 354 2011 11 3.05413e+01 5.45674e+00 900 2011 12 3.32882e+01 4.84437e+00 898 2012 1 2.18749e+01 3.68858e+00 738 2012 2 2.89298e+01 3.25987e+00 329 2012 3 3.63240e+01 4.34263e+00 594 2012 4 3.09672e+01 4.02871e+00 567 2012 5 3.14479e+01 5.96948e+00 291 2012 6 3.09096e+01 3.52410e+00 291 2012 7 2.65871e+01 3.73068e+00 236 2012 8 2.91133e+01 5.07289e+00 358 2012 9 2.98396e+01 4.21016e+00 369 2012 10 2.34224e+01 7.24812e+00 673 2012 11 2.38422e+01 4.23608e+00 844 2012 12 2.58309e+01 5.01366e+00 471 2013 1 3.05238e+01 5.31868e+00 390 2013 2 2.90404e+01 7.36253e+00 436 2013 3 3.21982e+01 3.99242e+00 647 2013 4 3.39575e+01 6.05780e+00 491 2013 5 2.97648e+01 2.72185e+00 320 2013 6 3.45661e+01 2.81643e+00 103 2013 7 2.92689e+01 4.82084e+00 180 2013 8 3.51687e+01 1.65624e+00 74 2013 9 3.03584e+01 6.65523e+00 247 2013 10 2.44289e+01 8.17779e+00 630 2013 11 3.75885e+01 5.44045e+00 546 2013 12 3.30059e+01 3.83317e+00 501 2014 1 2.92685e+01 5.66547e+00 375 2014 2 2.64934e+01 5.67645e+00 596 2014 3 2.77217e+01 4.11435e+00 453 2014 4 3.03293e+01 5.60580e+00 436 2014 5 3.31428e+01 6.55832e+00 307 2014 6 2.72630e+01 5.76511e+00 477 2014 7 3.16460e+01 6.88662e+00 241 2014 8 3.07578e+01 5.56303e+00 601 2014 9 2.95066e+01 4.44687e+00 273 2014 10 3.13476e+01 4.69216e+00 755 2014 11 2.57330e+01 5.74759e+00 618 2014 12 2.73150e+01 6.50438e+00 541 2015 1 2.40602e+01 7.52001e+00 685 2015 2 2.50210e+01 4.92154e+00 730 2015 3 2.84584e+01 5.64494e+00 411 2015 4 2.72411e+01 3.19270e+00 316 2015 5 3.31093e+01 4.08889e+00 430 2015 6 3.02866e+01 4.82675e+00 244 2015 7 2.66926e+01 3.89300e+00 344 2015 8 2.93110e+01 3.83914e+00 523 2015 9 2.60111e+01 4.41623e+00 230 2015 10 3.35318e+01 3.57566e+00 694 2015 11 3.18462e+01 5.82223e+00 540 2015 12 3.48411e+01 5.23222e+00 343 2016 1 2.92375e+01 8.39177e+00 332 2016 2 2.12485e+01 4.90975e+00 458 2016 3 2.34181e+01 5.98508e+00 412 2016 4 2.85112e+01 7.65102e+00 363 2016 5 2.84240e+01 6.09966e+00 332 2016 6 2.62650e+01 3.88249e+00 371 2016 7 2.56035e+01 4.80938e+00 318 2016 8 3.15492e+01 5.49945e+00 186 2016 9 3.01630e+01 5.76613e+00 332 2016 10 2.17101e+01 1.23670e+01 526 2016 11 3.30270e+01 4.29071e+00 667 2016 12 3.14066e+01 3.87340e+00 511 2017 1 2.37681e+01 8.18839e+00 404 2017 2 2.94932e+01 5.23052e+00 574 2017 3 2.40091e+01 6.59464e+00 553 2017 4 3.39405e+01 7.39813e+00 419 2017 5 3.46716e+01 5.01445e+00 452 2017 6 3.44089e+01 5.79335e+00 260 2017 7 3.18511e+01 4.67277e+00 137 2017 8 2.89280e+01 5.18493e+00 454 2017 9 2.53532e+01 5.02158e+00 642 2017 10 3.32995e+01 4.30873e+00 312 2017 11 1.15407e+01 3.69774e+00 358 2017 12 2.13446e+01 7.04715e+00 581 2018 1 2.27631e+01 2.82239e+00 478 2018 2 2.76589e+01 5.57040e+00 435 2018 3 2.92470e+01 4.01710e+00 604 2018 4 2.91771e+01 6.60765e+00 595 2018 5 3.58353e+01 2.38853e+00 64 2018 6 3.00395e+01 4.28708e+00 127 2018 7 3.26283e+01 6.37545e+00 539 2018 8 2.75318e+01 5.06815e+00 385 2018 9 2.59768e+01 8.12055e+00 344 2018 10 2.89854e+01 1.35197e+01 677 2018 11 1.70965e+01 7.79991e+00 273 2018 12 1.41097e+01 6.21118e+00 580 2019 1 2.57624e+01 4.69725e+00 641 2019 2 3.21707e+01 6.08699e+00 516 2019 3 3.13529e+01 4.55598e+00 669 2019 4 2.81220e+01 6.38493e+00 368 2019 5 2.79898e+01 4.72107e+00 357 2019 6 3.25344e+01 5.80401e+00 572 2019 7 3.09941e+01 7.56766e+00 198 2019 8 3.00338e+01 6.75511e+00 394 2019 9 3.57143e+01 5.03232e+00 403 2019 10 3.87574e+01 8.20474e+00 365 2019 11 3.12548e+01 9.07491e+00 675 2019 12 2.28703e+01 3.46646e+00 385 2020 1 2.87577e+01 6.01093e+00 511 2020 2 2.61842e+01 5.44925e+00 810 2020 3 3.15292e+01 4.80615e+00 486 2020 4 3.11813e+01 5.17887e+00 208 2020 5 3.34341e+01 4.48844e+00 355 2020 6 2.80887e+01 5.03448e+00 279 2020 7 3.22538e+01 4.83055e+00 300 2020 8 3.11562e+01 5.35389e+00 456 2020 9 3.55734e+01 3.84093e+00 295 2020 10 3.98117e+01 4.88135e+00 254 2020 11 3.71114e+01 3.84479e+00 189 2020 12 2.66191e+01 5.59668e+00 640 2021 1 2.54326e+01 4.75277e+00 485 2021 2 2.93095e+01 5.10013e+00 469 2021 3 3.10844e+01 4.75777e+00 458 2021 4 3.23050e+01 5.92605e+00 431 2021 5 3.08470e+01 5.79400e+00 334 2021 6 3.06165e+01 2.04925e+00 53 2021 7 3.19778e+01 4.58866e+00 132 2021 8 3.48727e+01 2.34523e+00 109 2021 9 2.92874e+01 7.04669e+00 338 2021 10 3.32737e+01 6.03604e+00 488 2021 11 2.88388e+01 5.84897e+00 536 2021 12 2.47517e+01 3.44302e+00 502 2022 1 2.57704e+01 3.47529e+00 518 2022 2 2.78144e+01 1.03726e+01 413 2022 3 3.19826e+01 2.30441e+00 153 2022 4 3.38943e+01 4.89667e+00 14 2022 5 3.25909e+01 5.65591e+00 419 2022 6 2.67101e+01 6.33957e+00 348 2022 7 2.78583e+01 5.94850e+00 312 2022 8 3.21097e+01 1.20874e+01 222 2022 9 1.45419e+01 6.14775e+00 321 2022 10 1.13283e+01 3.46671e+00 400 2022 11 2.62270e+01 1.53260e+01 255 2022 12 2.65370e+01 1.08498e+01 633 2023 1 2.12809e+01 4.71121e+00 636 2023 2 2.93220e+01 6.45863e+00 475 2023 3 2.86791e+01 4.51023e+00 384 2023 4 3.04805e+01 4.00879e+00 207 2023 5 3.02247e+01 5.64277e+00 715 2023 6 2.84854e+01 5.22450e+00 335 2023 7 3.16053e+01 5.16002e+00 223 2023 8 2.84597e+01 7.59396e+00 451 2023 9 3.01017e+01 5.53832e+00 521 2023 10 3.30558e+01 9.84982e+00 721 2023 11 4.00806e+01 5.19960e+00 739 2023 12 3.96005e+01 7.29489e+00 357 2024 1 2.65027e+01 8.56245e+00 244 2024 2 2.81504e+01 3.19128e+00 584 2024 3 2.46424e+01 5.17057e+00 414 2024 4 nan nan 0