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 1.79797e+00 1.31147e+00 127 2002 8 1.40535e+00 8.24951e-01 293 2002 9 1.49734e+00 6.25810e-01 109 2002 10 1.45784e+00 7.06479e-01 330 2002 11 1.89958e+00 5.36122e-01 482 2002 12 1.77236e+00 8.16183e-01 504 2003 1 1.93642e+00 9.48228e-01 634 2003 2 1.25325e+00 5.38676e-01 451 2003 3 nan nan 0 2003 4 nan nan 0 2003 5 5.36126e+00 2.48007e+00 13 2003 6 2.08114e+00 1.29368e+00 17 2003 7 nan nan 0 2003 8 6.10917e+00 1.86402e+00 18 2003 9 2.68409e+00 2.16518e+00 107 2003 10 2.94498e+00 1.93935e+00 423 2003 11 2.09251e+00 9.16326e-01 429 2003 12 1.38437e+00 9.39097e-01 552 2004 1 1.33919e+00 3.37563e-01 555 2004 2 1.51521e+00 7.60515e-01 300 2004 3 4.62958e+00 1.85220e+00 399 2004 4 1.47901e+00 4.41867e-01 188 2004 5 1.57782e+00 5.52890e-01 301 2004 6 1.31855e+00 7.25280e-01 236 2004 7 2.20455e+00 6.57459e-01 160 2004 8 2.98197e+00 1.91495e+00 158 2004 9 nan nan 0 2004 10 nan nan 0 2004 11 nan nan 0 2004 12 4.23643e+00 1.58695e+00 214 2005 1 2.87295e+00 2.04592e+00 313 2005 2 3.12747e+00 1.90277e+00 145 2005 3 1.74891e+00 7.18930e-01 169 2005 4 4.18979e+00 1.36320e+00 16 2005 5 nan nan 0 2005 6 2.83998e+00 2.46400e+00 13 2005 7 nan nan 0 2005 8 7.56485e+00 1.20620e+00 10 2005 9 3.88451e+00 1.48824e+00 130 2005 10 1.32348e+00 5.57210e-01 493 2005 11 1.26822e+00 5.14461e-01 579 2005 12 1.81484e+00 8.45889e-01 520 2006 1 3.01846e+00 1.42440e+00 154 2006 2 5.54172e+00 1.78298e+00 153 2006 3 4.43964e+00 2.59737e+00 212 2006 4 1.84557e+00 4.18385e-01 204 2006 5 2.55599e+00 1.99086e+00 103 2006 6 1.40307e+00 5.41348e-01 92 2006 7 2.87106e+00 1.34029e+00 123 2006 8 1.48150e+00 2.13070e-01 64 2006 9 1.83438e+00 9.11228e-01 471 2006 10 1.30165e+00 6.06106e-01 453 2006 11 1.45354e+00 1.05295e+00 599 2006 12 9.49313e-01 9.70920e-01 313 2007 1 1.01913e+00 6.15071e-01 290 2007 2 1.09174e+00 5.65097e-01 573 2007 3 1.62773e+00 9.04743e-01 522 2007 4 2.02227e+00 1.23110e+00 356 2007 5 4.07072e+00 9.57267e-01 42 2007 6 1.12044e+00 2.45463e-01 76 2007 7 2.04544e+00 7.84823e-01 173 2007 8 1.69006e+00 1.31170e+00 220 2007 9 1.21286e+00 3.84439e-01 136 2007 10 9.41827e-01 2.53179e-01 224 2007 11 1.05412e+00 3.83022e-01 809 2007 12 1.23725e+00 4.78742e-01 350 2008 1 1.05098e+00 5.52936e-01 381 2008 2 1.74251e+00 6.65578e-01 605 2008 3 2.67205e+00 2.42740e+00 109 2008 4 6.16474e+00 2.17880e+00 31 2008 5 2.04510e+00 4.11469e-01 123 2008 6 2.57965e+00 1.44337e+00 189 2008 7 1.79508e+00 1.06367e+00 259 2008 8 2.20514e+00 3.67115e-01 64 2008 9 4.17356e+00 1.99040e+00 84 2008 10 2.91524e+00 1.44093e+00 449 2008 11 1.32757e+00 4.62671e-01 804 2008 12 2.34750e+00 1.23771e+00 514 2009 1 2.45426e+00 1.65430e+00 556 2009 2 1.44430e+00 6.08868e-01 674 2009 3 1.48889e+00 8.20788e-01 451 2009 4 2.38882e+00 9.76641e-01 131 2009 5 2.28858e+00 5.11132e-01 64 2009 6 1.34748e+00 1.83896e-01 57 2009 7 nan nan 0 2009 8 4.58676e+00 1.84743e+00 158 2009 9 2.54463e+00 1.04739e+00 299 2009 10 1.51066e+00 4.78454e-01 670 2009 11 1.13312e+00 2.98400e-01 448 2009 12 1.20016e+00 4.22662e-01 261 2010 1 1.81303e+00 1.57626e+00 625 2010 2 2.73340e+00 8.61530e-01 393 2010 3 3.15105e+00 1.37210e+00 269 2010 4 nan nan 0 2010 5 2.95570e+00 1.32899e+00 138 2010 6 3.16452e+00 1.44455e+00 255 2010 7 3.87516e+00 2.13738e+00 85 2010 8 4.62104e+00 2.58097e+00 27 2010 9 2.09857e+00 1.65674e+00 200 2010 10 1.60225e+00 9.12574e-01 1011 2010 11 1.28821e+00 5.32082e-01 746 2010 12 1.11929e+00 5.18156e-01 570 2011 1 1.11912e+00 6.76379e-01 488 2011 2 1.29928e+00 1.52012e+00 529 2011 3 2.09480e+00 1.19756e+00 592 2011 4 2.63878e+00 1.44330e+00 382 2011 5 1.99665e+00 1.61213e+00 338 2011 6 2.80306e+00 1.54160e+00 87 2011 7 1.43114e+00 8.66706e-01 231 2011 8 1.89912e+00 1.42457e+00 153 2011 9 1.09452e+00 3.95866e-01 460 2011 10 1.30308e+00 8.52562e-01 629 2011 11 1.03958e+00 6.98718e-01 741 2011 12 9.06455e-01 3.28478e-01 670 2012 1 1.16879e+00 7.24695e-01 755 2012 2 1.05972e+00 1.73521e-01 116 2012 3 2.56815e+00 1.83220e+00 472 2012 4 1.98532e+00 1.70279e+00 445 2012 5 1.60586e+00 1.03849e+00 237 2012 6 nan nan 0 2012 7 nan nan 0 2012 8 1.38375e-04 0.00000e+00 1 2012 9 3.61042e+00 2.04298e+00 80 2012 10 nan nan 0 2012 11 1.31552e+00 4.72011e-01 412 2012 12 1.21135e+00 3.63045e-01 221 2013 1 1.34684e+00 8.17492e-01 324 2013 2 1.49369e+00 8.11448e-01 309 2013 3 1.63123e+00 9.85945e-01 298 2013 4 nan nan 0 2013 5 3.79718e+00 1.91236e+00 89 2013 6 nan nan 0 2013 7 nan nan 0 2013 8 nan nan 0 2013 9 2.65528e+00 3.46211e+00 11 2013 10 2.43893e+00 1.32981e+00 425 2013 11 1.85400e+00 6.21607e-01 168 2013 12 1.98120e+00 1.17712e+00 363 2014 1 1.58203e+00 8.55684e-01 144 2014 2 2.35851e+00 9.95783e-01 228 2014 3 3.34978e+00 1.23580e+00 240 2014 4 nan nan 0 2014 5 nan nan 0 2014 6 2.98067e+00 1.44287e+00 38 2014 7 3.60715e+00 2.07256e+00 153 2014 8 2.54961e+00 5.71582e-01 114 2014 9 3.23745e+00 1.27954e+00 13 2014 10 2.79582e+00 1.52253e+00 792 2014 11 1.35638e+00 6.52836e-01 595 2014 12 1.57758e+00 1.19064e+00 381 2015 1 2.65012e+00 1.81732e+00 462 2015 2 3.65783e+00 2.46994e+00 286 2015 3 3.76065e+00 1.88260e+00 166 2015 4 5.32715e+00 1.16803e+00 56 2015 5 2.84288e+00 1.76401e+00 261 2015 6 2.15389e+00 1.58776e+00 140 2015 7 3.59052e+00 2.27413e+00 22 2015 8 nan nan 0 2015 9 4.42842e+00 1.90160e+00 91 2015 10 2.75462e+00 1.86271e+00 374 2015 11 2.81640e+00 1.98895e+00 232 2015 12 1.82276e+00 6.69630e-01 411 2016 1 1.98136e+00 7.98612e-01 302 2016 2 3.10915e+00 1.97254e+00 303 2016 3 4.11016e+00 1.66584e+00 200 2016 4 3.44897e+00 1.19688e+00 133 2016 5 4.17953e+00 1.94225e+00 142 2016 6 1.95852e+00 1.20686e+00 270 2016 7 2.12089e+00 8.43529e-01 300 2016 8 2.63076e+00 1.52070e+00 175 2016 9 6.09011e+00 2.22888e+00 116 2016 10 1.70777e+00 5.52051e-01 455 2016 11 1.45938e+00 6.58202e-01 569 2016 12 1.34511e+00 6.07566e-01 475 2017 1 1.24274e+00 5.19893e-01 263 2017 2 4.51544e+00 1.82324e+00 297 2017 3 2.28735e+00 9.58328e-01 609 2017 4 2.12874e+00 1.27269e+00 379 2017 5 3.29348e+00 2.30015e+00 121 2017 6 3.15931e+00 2.69288e+00 28 2017 7 1.98702e+00 0.00000e+00 1 2017 8 5.75777e+00 2.15145e+00 61 2017 9 2.61805e+00 1.97729e+00 63 2017 10 2.84769e+00 2.47835e-01 50 2017 11 2.46406e+00 1.17406e+00 763 2017 12 1.55763e+00 5.44660e-01 427 2018 1 1.18180e+00 3.01551e-01 444 2018 2 2.65246e+00 1.88057e+00 331 2018 3 2.07538e+00 9.42383e-01 485 2018 4 2.54578e+00 8.69272e-01 222 2018 5 2.23645e+00 1.63603e+00 134 2018 6 6.04069e+00 1.36570e+00 13 2018 7 nan nan 0 2018 8 9.25119e-02 1.29832e-01 6 2018 9 5.01357e+00 2.08049e+00 125 2018 10 2.57681e+00 1.39891e+00 625 2018 11 1.50305e+00 3.99593e-01 237 2018 12 3.30297e+00 1.76429e+00 295 2019 1 5.22313e+00 1.83241e+00 72 2019 2 nan nan 0 2019 3 5.13773e+00 1.68570e+00 98 2019 4 3.83909e+00 2.00078e+00 137 2019 5 2.24429e+00 6.22273e-01 159 2019 6 1.19495e+00 1.64733e-01 77 2019 7 9.21431e-01 5.73004e-02 12 2019 8 6.25027e+00 2.18048e+00 56 2019 9 1.83818e+00 5.76661e-01 229 2019 10 1.90752e+00 1.09582e+00 335 2019 11 1.25677e+00 5.56588e-01 580 2019 12 1.41554e+00 6.68970e-01 187 2020 1 1.54773e+00 6.16811e-01 243 2020 2 1.81467e+00 5.98738e-01 160 2020 3 3.95815e+00 2.93411e+00 133 2020 4 5.20876e+00 4.46636e-01 4 2020 5 4.19080e+00 1.56519e+00 99 2020 6 6.94733e+00 1.67850e+00 20 2020 7 nan nan 0 2020 8 4.69857e+00 9.17446e-01 73 2020 9 nan nan 0 2020 10 3.46686e+00 2.21599e+00 215 2020 11 2.39364e+00 1.06939e+00 468 2020 12 1.91565e+00 1.31657e+00 490 2021 1 1.52263e+00 3.20809e-01 135 2021 2 5.39970e+00 1.82962e+00 201 2021 3 7.74617e+00 1.41282e+00 26 2021 4 nan nan 0 2021 5 4.38749e+00 1.64622e+00 117 2021 6 2.35864e+00 2.11186e+00 84 2021 7 3.59810e+00 1.16401e+00 13 2021 8 nan nan 0 2021 9 nan nan 0 2021 10 4.85249e+00 2.74741e+00 79 2021 11 2.45695e+00 1.34865e+00 511 2021 12 2.60278e+00 1.78486e+00 433 2022 1 2.81130e+00 1.12897e+00 310 2022 2 2.25533e+00 9.20219e-01 561 2022 3 2.48422e+00 1.06796e+00 416 2022 4 nan nan 0 2022 5 4.09953e+00 1.26249e+00 137 2022 6 2.80169e+00 1.86424e+00 220 2022 7 2.72664e+00 2.33914e+00 168 2022 8 3.50296e+00 1.22038e+00 82 2022 9 2.78423e+00 8.99051e-01 152 2022 10 1.45890e+00 7.99680e-01 1033 2022 11 2.16418e+00 1.53030e+00 362 2022 12 1.80179e+00 1.68744e+00 493 2023 1 1.34453e+00 1.16015e+00 568 2023 2 2.26944e+00 2.04146e+00 413 2023 3 3.21439e+00 1.69815e+00 257 2023 4 2.06531e+00 1.42807e+00 358 2023 5 1.90137e+00 3.47332e-01 113 2023 6 2.49125e+00 1.41792e+00 184 2023 7 2.43559e+00 2.07039e+00 175 2023 8 2.75872e+00 2.16691e+00 75 2023 9 5.89240e+00 1.88944e+00 130 2023 10 2.12915e+00 1.19293e+00 463 2023 11 1.40666e+00 6.95920e-01 400 2023 12 3.23625e+00 2.46465e+00 283 2024 1 7.48327e+00 1.07329e+00 12 2024 2 4.63996e+00 2.31739e+00 300 2024 3 3.50566e+00 1.41435e+00 211 2024 4 nan nan 0