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 8.71609e-01 9.30000e-02 128 2002 8 1.11202e+00 5.47858e-01 328 2002 9 1.18107e+00 3.21661e-01 154 2002 10 1.26927e+00 4.47825e-01 511 2002 11 1.44258e+00 5.63271e-01 741 2002 12 1.48511e+00 6.74214e-01 500 2003 1 1.53928e+00 5.62660e-01 655 2003 2 1.13481e+00 5.99224e-01 479 2003 3 nan nan 0 2003 4 nan nan 0 2003 5 5.92315e+00 3.30323e+00 20 2003 6 6.84181e+00 1.46486e+00 16 2003 7 nan nan 0 2003 8 6.33738e+00 1.56933e+00 32 2003 9 3.36439e+00 1.95820e+00 201 2003 10 2.29135e+00 1.46962e+00 485 2003 11 1.70546e+00 5.02389e-01 672 2003 12 1.30023e+00 8.37902e-01 562 2004 1 1.22900e+00 2.85301e-01 695 2004 2 1.25854e+00 5.87267e-01 356 2004 3 3.35661e+00 1.39746e+00 644 2004 4 1.35403e+00 5.47273e-01 237 2004 5 1.26136e+00 3.87858e-01 386 2004 6 1.19145e+00 6.78359e-01 249 2004 7 1.51086e+00 2.68330e-01 194 2004 8 2.70391e+00 1.41536e+00 246 2004 9 2.52697e+00 3.72392e-01 83 2004 10 nan nan 0 2004 11 nan nan 0 2004 12 3.23551e+00 9.09320e-01 198 2005 1 2.73764e+00 2.20217e+00 281 2005 2 3.16106e+00 1.99991e+00 261 2005 3 2.14277e+00 1.52906e+00 313 2005 4 2.35905e+00 1.54892e+00 139 2005 5 3.74752e+00 8.08686e-01 41 2005 6 7.97377e+00 1.29920e+00 9 2005 7 nan nan 0 2005 8 5.34540e+00 1.61937e+00 145 2005 9 2.23505e+00 6.60807e-01 174 2005 10 1.35448e+00 4.81271e-01 556 2005 11 1.15169e+00 4.54413e-01 572 2005 12 1.58959e+00 5.79643e-01 576 2006 1 2.64772e+00 1.71123e+00 271 2006 2 3.57403e+00 1.72858e+00 241 2006 3 4.40445e+00 2.32402e+00 387 2006 4 2.22375e+00 1.25572e+00 277 2006 5 1.98824e+00 1.36287e+00 180 2006 6 1.41173e+00 3.90630e-01 127 2006 7 1.92765e+00 5.23489e-01 153 2006 8 1.50462e+00 2.21387e-01 115 2006 9 1.54397e+00 4.43187e-01 601 2006 10 1.25025e+00 5.58890e-01 465 2006 11 1.35550e+00 8.76355e-01 573 2006 12 7.16124e-01 2.89123e-01 354 2007 1 9.85578e-01 2.91601e-01 274 2007 2 9.04218e-01 3.88314e-01 569 2007 3 1.30401e+00 6.68547e-01 883 2007 4 1.44446e+00 6.12484e-01 428 2007 5 2.02778e+00 7.11020e-01 66 2007 6 1.41355e+00 2.46958e-01 143 2007 7 1.67853e+00 5.99448e-01 254 2007 8 1.42707e+00 5.92636e-01 225 2007 9 1.31801e+00 3.17129e-01 236 2007 10 1.03326e+00 2.82911e-01 352 2007 11 9.46583e-01 3.21689e-01 825 2007 12 9.42817e-01 2.76191e-01 534 2008 1 1.15994e+00 6.49546e-01 408 2008 2 1.26994e+00 2.37027e-01 652 2008 3 1.91111e+00 1.73804e+00 235 2008 4 5.04997e+00 1.56981e+00 161 2008 5 3.16769e+00 2.33079e+00 196 2008 6 2.00800e+00 2.74225e-01 185 2008 7 1.57847e+00 7.08120e-01 298 2008 8 1.64032e+00 3.58703e-01 64 2008 9 3.47495e+00 1.52531e+00 183 2008 10 2.80885e+00 1.65830e+00 642 2008 11 1.16401e+00 3.79161e-01 818 2008 12 2.20169e+00 1.14922e+00 606 2009 1 1.71329e+00 7.38928e-01 581 2009 2 1.31976e+00 6.03466e-01 709 2009 3 1.21869e+00 7.59176e-01 627 2009 4 2.56813e+00 1.74297e+00 174 2009 5 2.42919e+00 1.44058e+00 67 2009 6 1.18191e+00 2.97443e-01 62 2009 7 nan nan 0 2009 8 2.89222e+00 1.23816e+00 380 2009 9 1.85243e+00 5.98358e-01 344 2009 10 1.22503e+00 2.60258e-01 731 2009 11 1.28873e+00 8.62952e-01 501 2009 12 1.35224e+00 7.37341e-01 248 2010 1 1.49856e+00 9.05767e-01 707 2010 2 2.49449e+00 1.22234e+00 482 2010 3 3.40096e+00 1.24321e+00 457 2010 4 5.16406e+00 1.38614e+00 41 2010 5 3.50994e+00 2.46112e+00 216 2010 6 2.43952e+00 1.18126e+00 368 2010 7 3.65115e+00 2.09092e+00 121 2010 8 2.42776e+00 1.44004e+00 113 2010 9 3.16054e+00 2.17049e+00 241 2010 10 1.40190e+00 6.03703e-01 1339 2010 11 1.26372e+00 5.00539e-01 958 2010 12 1.03344e+00 4.86004e-01 584 2011 1 9.86820e-01 6.37298e-01 467 2011 2 1.36044e+00 1.39770e+00 701 2011 3 1.71432e+00 7.36181e-01 732 2011 4 1.85301e+00 6.55437e-01 525 2011 5 1.46331e+00 1.00933e+00 435 2011 6 1.31690e+00 7.04820e-01 162 2011 7 1.15844e+00 3.17887e-01 263 2011 8 1.63611e+00 1.07509e+00 190 2011 9 1.21809e+00 4.62288e-01 566 2011 10 1.24982e+00 6.55869e-01 754 2011 11 1.05265e+00 5.09126e-01 938 2011 12 9.67682e-01 4.35246e-01 731 2012 1 1.12236e+00 8.29087e-01 875 2012 2 9.23802e-01 2.13462e-01 145 2012 3 1.25881e+00 7.54527e-01 604 2012 4 1.43005e+00 7.79706e-01 552 2012 5 1.26449e+00 4.48329e-01 256 2012 6 4.78143e+00 2.17293e+00 47 2012 7 1.87033e+00 1.19209e-07 6 2012 8 nan nan 0 2012 9 4.40942e+00 1.95976e+00 179 2012 10 5.57558e+00 2.21074e+00 69 2012 11 1.08175e+00 2.36922e-01 478 2012 12 1.24219e+00 3.35093e-01 284 2013 1 1.23467e+00 8.10210e-01 441 2013 2 1.16556e+00 1.83215e-01 300 2013 3 1.75895e+00 1.04636e+00 475 2013 4 7.31229e+00 1.70471e+00 45 2013 5 2.34530e+00 1.00502e+00 153 2013 6 5.12238e+00 1.53073e+00 93 2013 7 6.92590e+00 1.25728e+00 4 2013 8 5.73921e+00 5.86933e-01 4 2013 9 2.16610e-01 0.00000e+00 1 2013 10 2.12116e+00 8.58284e-01 577 2013 11 1.67983e+00 2.96635e-01 234 2013 12 1.20342e+00 2.71644e-01 585 2014 1 1.42042e+00 6.15163e-01 230 2014 2 2.63691e+00 1.82254e+00 512 2014 3 2.28737e+00 6.91039e-01 419 2014 4 5.21013e+00 1.85520e+00 76 2014 5 4.88978e+00 1.35740e+00 45 2014 6 2.08837e+00 1.73054e-01 55 2014 7 3.38666e+00 1.77977e+00 327 2014 8 1.71764e+00 4.97309e-01 183 2014 9 1.34009e+00 2.07925e-01 63 2014 10 2.07412e+00 1.05021e+00 1017 2014 11 1.35349e+00 6.51478e-01 759 2014 12 1.09267e+00 5.05763e-01 440 2015 1 1.61797e+00 1.10647e+00 577 2015 2 2.13805e+00 1.13415e+00 571 2015 3 3.99710e+00 1.93939e+00 242 2015 4 4.22245e+00 6.25967e-01 61 2015 5 2.64472e+00 1.61705e+00 268 2015 6 1.57284e+00 5.38777e-01 252 2015 7 1.74797e+00 7.90877e-01 28 2015 8 nan nan 0 2015 9 3.20811e+00 1.64628e+00 141 2015 10 1.68544e+00 4.32182e-01 553 2015 11 2.95042e+00 1.83338e+00 382 2015 12 1.59834e+00 6.84717e-01 436 2016 1 1.62753e+00 8.17427e-01 395 2016 2 2.52358e+00 1.90657e+00 604 2016 3 3.13536e+00 1.58772e+00 418 2016 4 3.11577e+00 1.19619e+00 178 2016 5 3.04660e+00 1.39784e+00 365 2016 6 1.91645e+00 8.75462e-01 429 2016 7 1.83159e+00 6.83268e-01 469 2016 8 2.80399e+00 1.44139e+00 247 2016 9 5.78681e+00 1.98932e+00 155 2016 10 1.57487e+00 8.18743e-01 572 2016 11 1.23561e+00 3.09244e-01 716 2016 12 1.22205e+00 5.05037e-01 540 2017 1 1.14788e+00 4.72527e-01 441 2017 2 2.85889e+00 9.80305e-01 531 2017 3 1.86418e+00 9.89699e-01 709 2017 4 1.55375e+00 3.84489e-01 415 2017 5 1.89543e+00 7.51001e-01 253 2017 6 1.42701e+00 6.42526e-01 162 2017 7 2.13437e+00 3.75466e-01 64 2017 8 3.61090e+00 1.90250e+00 204 2017 9 2.58395e+00 1.25951e+00 179 2017 10 2.16493e+00 2.54197e-01 63 2017 11 2.05793e+00 8.77977e-01 993 2017 12 1.30851e+00 4.02462e-01 488 2018 1 1.21114e+00 2.82593e-01 593 2018 2 2.61694e+00 1.60449e+00 415 2018 3 2.02010e+00 9.04564e-01 530 2018 4 2.67808e+00 1.16400e+00 423 2018 5 2.11232e+00 1.12374e+00 153 2018 6 4.06398e+00 1.99526e+00 166 2018 7 3.11986e+00 3.58549e-01 42 2018 8 1.05403e+00 0.00000e+00 3 2018 9 3.71643e+00 1.49519e+00 350 2018 10 1.94858e+00 7.03865e-01 644 2018 11 1.44121e+00 3.75347e-01 101 2018 12 2.79772e+00 1.63147e+00 393 2019 1 4.15131e+00 1.50974e+00 99 2019 2 nan nan 0 2019 3 3.98830e+00 1.67116e+00 290 2019 4 3.08996e+00 8.56766e-01 281 2019 5 2.48432e+00 1.43896e+00 392 2019 6 2.32322e+00 1.96015e+00 159 2019 7 5.03461e+00 2.33548e+00 55 2019 8 4.24705e+00 1.57018e+00 89 2019 9 2.13879e+00 1.22805e+00 229 2019 10 1.67442e+00 6.47915e-01 400 2019 11 1.43163e+00 7.10622e-01 613 2019 12 1.27536e+00 5.77040e-01 234 2020 1 1.80703e+00 1.10929e+00 355 2020 2 1.71275e+00 7.61155e-01 195 2020 3 3.63468e+00 2.05740e+00 262 2020 4 3.09568e+00 1.36279e+00 132 2020 5 3.12897e+00 1.37258e+00 333 2020 6 3.68449e+00 2.00448e+00 187 2020 7 2.87259e+00 8.85314e-01 45 2020 8 3.69095e+00 6.63491e-01 113 2020 9 3.51582e+00 1.08636e+00 36 2020 10 3.16770e+00 1.59262e+00 445 2020 11 1.87426e+00 6.19576e-01 516 2020 12 1.69740e+00 9.24822e-01 512 2021 1 1.54926e+00 5.95848e-01 174 2021 2 3.48020e+00 1.03302e+00 231 2021 3 5.51317e+00 1.30374e+00 179 2021 4 6.73190e+00 1.56427e+00 90 2021 5 3.25986e+00 7.07651e-01 261 2021 6 2.01042e+00 3.73415e-01 84 2021 7 3.90534e+00 2.65505e+00 73 2021 8 nan nan 0 2021 9 4.39655e+00 4.09325e+00 30 2021 10 3.56654e+00 1.99999e+00 264 2021 11 1.61392e+00 4.80006e-01 653 2021 12 1.88178e+00 1.13939e+00 543 2022 1 2.44661e+00 1.08795e+00 239 2022 2 1.88316e+00 6.94706e-01 694 2022 3 2.24824e+00 9.78487e-01 498 2022 4 nan nan 0 2022 5 3.26450e+00 1.51853e+00 258 2022 6 1.99797e+00 7.54971e-01 196 2022 7 1.73483e+00 5.27906e-01 181 2022 8 3.41865e+00 1.74575e+00 221 2022 9 1.93704e+00 5.58806e-01 190 2022 10 1.14839e+00 4.27194e-01 1056 2022 11 1.96188e+00 1.41034e+00 345 2022 12 1.54645e+00 1.10101e+00 607 2023 1 1.15563e+00 4.92260e-01 554 2023 2 1.67775e+00 1.18737e+00 445 2023 3 2.07766e+00 1.07814e+00 218 2023 4 1.70319e+00 1.15586e+00 414 2023 5 1.40351e+00 2.28518e-01 131 2023 6 1.85950e+00 5.73311e-01 179 2023 7 1.90170e+00 1.25986e+00 331 2023 8 4.57884e+00 2.90951e+00 182 2023 9 3.95099e+00 2.07861e+00 239 2023 10 1.77654e+00 1.14909e+00 666 2023 11 1.40523e+00 7.44915e-01 468 2023 12 1.94257e+00 6.90291e-01 217 2024 1 4.21682e+00 2.58326e+00 123 2024 2 2.83265e+00 1.13578e+00 478 2024 3 2.69469e+00 6.35819e-01 230 2024 4 nan nan 0