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 6.29506e+00 3.17870e+00 49 2002 8 9.51517e-01 4.00914e-01 64 2002 9 4.30174e-01 3.43454e-01 124 2002 10 2.46659e+00 1.92116e+00 580 2002 11 2.37690e+00 2.63299e+00 784 2002 12 3.21386e+00 2.58283e+00 612 2003 1 4.83974e+00 3.41189e+00 778 2003 2 2.89436e+00 3.31528e+00 535 2003 3 2.67162e+00 2.18461e+00 340 2003 4 6.74854e-01 7.65762e-02 4 2003 5 6.68788e+00 1.37907e+00 98 2003 6 4.55417e+00 1.26926e+00 64 2003 7 nan nan 0 2003 8 1.29537e+00 4.22065e-01 127 2003 9 2.59664e+00 1.62571e+00 221 2003 10 3.26459e+00 2.53757e+00 308 2003 11 1.73065e-01 2.65174e-01 382 2003 12 1.41495e+00 1.91608e+00 562 2004 1 4.57540e-01 5.79116e-01 568 2004 2 2.56263e+00 1.94562e+00 689 2004 3 3.01418e+00 4.96342e+00 514 2004 4 3.90540e+00 3.41342e+00 476 2004 5 2.94175e+00 2.85991e+00 121 2004 6 4.79743e+00 1.03525e+00 64 2004 7 5.69099e+00 6.97341e-01 52 2004 8 1.25950e+01 1.19786e+00 55 2004 9 1.39270e+00 5.46758e-01 62 2004 10 8.21756e-01 1.25366e+00 361 2004 11 5.19825e-01 9.38472e-01 437 2004 12 3.33782e-01 5.40401e-01 800 2005 1 5.52780e-01 1.12108e+00 394 2005 2 3.44659e+00 5.00880e+00 372 2005 3 4.49409e+00 3.12177e+00 377 2005 4 1.95676e+00 1.39921e+00 119 2005 5 3.09843e+00 3.15740e+00 118 2005 6 nan nan 0 2005 7 4.06665e+00 1.66054e+00 101 2005 8 2.59603e+00 2.47454e-01 35 2005 9 9.81160e-01 4.67452e-02 3 2005 10 1.47521e+00 1.02697e+00 285 2005 11 1.41704e+00 1.57196e+00 335 2005 12 7.92654e-01 7.78668e-01 685 2006 1 9.57084e-01 8.66470e-01 328 2006 2 3.58913e+00 2.59938e+00 618 2006 3 1.94808e+00 1.36393e+00 326 2006 4 nan nan 0 2006 5 5.58283e+00 2.78662e+00 49 2006 6 3.11195e+00 1.36855e-01 44 2006 7 4.21151e+00 2.03849e+00 128 2006 8 nan nan 0 2006 9 2.34810e+00 2.42500e+00 293 2006 10 2.49414e+00 2.98007e+00 258 2006 11 2.11643e+00 1.81114e+00 673 2006 12 1.31900e+00 1.30942e+00 680 2007 1 3.01220e+00 2.31629e+00 547 2007 2 2.99536e+00 2.00866e+00 836 2007 3 3.52171e+00 2.12798e+00 145 2007 4 4.49105e+00 3.11728e+00 185 2007 5 3.48451e+00 8.10256e-01 44 2007 6 5.20736e+00 6.30484e+00 84 2007 7 1.26570e+00 8.14269e-01 64 2007 8 3.90934e+00 3.07617e+00 226 2007 9 2.10530e+00 1.53621e+00 190 2007 10 1.72285e+00 1.32639e+00 239 2007 11 6.05662e-01 9.12063e-01 364 2007 12 4.80882e-01 7.37966e-01 581 2008 1 1.36874e+00 1.58234e+00 649 2008 2 3.95179e+00 2.71764e+00 632 2008 3 4.76256e+00 3.81749e+00 350 2008 4 2.16148e+00 1.53435e+00 217 2008 5 3.03268e+00 1.33643e+00 72 2008 6 nan nan 0 2008 7 6.22068e+00 3.48168e+00 125 2008 8 5.75968e+00 2.51196e+00 128 2008 9 1.72167e+00 7.19704e-01 192 2008 10 1.60345e+00 1.63592e+00 725 2008 11 2.36896e+00 1.84746e+00 467 2008 12 2.17915e+00 1.87735e+00 612 2009 1 2.38808e+00 2.23391e+00 492 2009 2 3.88478e+00 2.89131e+00 367 2009 3 6.60068e-01 7.89424e-01 290 2009 4 3.38079e+00 1.70736e+00 465 2009 5 3.47601e+00 3.51030e+00 99 2009 6 6.26117e+00 1.18245e+00 95 2009 7 4.06207e+00 2.29122e+00 286 2009 8 1.16976e+01 4.48344e+00 87 2009 9 3.19516e+00 1.61358e+00 187 2009 10 3.08286e+00 2.39524e+00 507 2009 11 3.89690e-01 5.76913e-01 447 2009 12 1.56714e+00 2.24690e+00 612 2010 1 5.90495e-01 6.62250e-01 530 2010 2 1.74106e+00 2.28364e+00 414 2010 3 4.45040e+00 2.39591e+00 234 2010 4 2.89335e+00 1.75721e+00 162 2010 5 2.29702e+00 9.10101e-01 119 2010 6 4.19748e+00 2.73303e+00 153 2010 7 4.74897e-01 1.96857e-01 56 2010 8 3.09505e+00 1.69932e+00 163 2010 9 7.18510e-01 2.37256e-01 104 2010 10 1.12455e+00 1.08838e+00 481 2010 11 1.35589e+00 1.09394e+00 209 2010 12 2.41908e+00 2.72091e+00 436 2011 1 1.03545e+00 1.40577e+00 439 2011 2 3.26635e+00 2.31548e+00 507 2011 3 3.31332e+00 2.17066e+00 575 2011 4 4.76620e+00 3.78085e+00 358 2011 5 1.16184e+00 1.09507e+00 128 2011 6 2.74253e+00 4.13890e-01 64 2011 7 5.72441e+00 1.17907e+00 54 2011 8 5.83733e+00 2.95038e+00 92 2011 9 1.66480e+00 1.13653e+00 236 2011 10 1.17409e+00 1.30709e+00 433 2011 11 2.40493e-01 4.09590e-01 354 2011 12 8.86005e-01 1.39301e+00 424 2012 1 1.38940e+00 1.70202e+00 659 2012 2 1.30470e+00 1.84502e+00 719 2012 3 6.59982e+00 4.25028e+00 248 2012 4 7.70207e-01 1.03485e+00 126 2012 5 1.15212e+00 8.51657e-01 187 2012 6 7.28107e+00 2.93447e+00 64 2012 7 6.64461e+00 1.17456e+00 64 2012 8 5.78689e+00 1.80459e+00 64 2012 9 8.99086e-01 6.45224e-01 256 2012 10 1.68795e+00 1.06501e+00 133 2012 11 7.06994e-01 1.16898e+00 517 2012 12 8.54139e-01 5.47670e-01 433 2013 1 1.68545e+00 1.30259e+00 559 2013 2 3.22026e+00 3.51479e+00 732 2013 3 1.52560e+00 1.24817e+00 394 2013 4 4.01655e+00 1.65987e+00 300 2013 5 2.57463e+00 1.67334e+00 102 2013 6 nan nan 0 2013 7 2.39093e+00 2.08432e+00 128 2013 8 3.56760e+00 1.47015e+00 135 2013 9 1.26320e+00 9.27691e-01 173 2013 10 2.42920e+00 1.53490e+00 128 2013 11 3.09453e-01 5.80817e-01 506 2013 12 9.65663e-01 9.19433e-01 461 2014 1 6.06130e+00 3.67564e+00 660 2014 2 2.25995e+00 1.75217e+00 548 2014 3 4.06551e+00 3.64424e+00 550 2014 4 3.25136e+00 2.31504e+00 297 2014 5 5.10221e+00 1.85542e+00 54 2014 6 2.68058e+00 6.26686e-01 63 2014 7 5.99739e+00 3.95873e+00 176 2014 8 3.77793e+00 1.16664e+00 64 2014 9 2.61401e+00 2.10212e+00 226 2014 10 2.42366e+00 2.88921e+00 383 2014 11 1.62728e+00 1.44952e+00 589 2014 12 1.33142e+00 1.47017e+00 630 2015 1 3.36715e+00 2.76877e+00 699 2015 2 1.84581e+00 2.46488e+00 525 2015 3 3.71412e+00 3.38515e+00 494 2015 4 6.98245e+00 3.90575e+00 431 2015 5 8.82736e+00 6.86185e+00 131 2015 6 nan nan 0 2015 7 1.51452e+01 2.37071e+00 9 2015 8 4.81963e+00 2.32371e+00 312 2015 9 3.17304e+00 1.12411e+00 231 2015 10 2.48239e+00 2.07847e+00 481 2015 11 2.45650e+00 1.65520e+00 437 2015 12 9.62524e-01 1.15520e+00 475 2016 1 2.72771e+00 3.10832e+00 479 2016 2 2.40751e+00 2.25118e+00 753 2016 3 1.91816e+00 1.93116e+00 259 2016 4 2.79339e+00 1.46436e+00 198 2016 5 4.76164e+00 8.10220e-01 64 2016 6 8.73646e+00 2.70234e+00 126 2016 7 3.70911e+00 2.45811e+00 127 2016 8 5.71951e+00 2.09397e+00 153 2016 9 3.64833e+00 1.91060e+00 318 2016 10 2.72708e-01 1.04188e+00 189 2016 11 1.41816e-03 2.58051e-03 64 2016 12 2.23198e+00 1.61764e+00 363 2017 1 1.00771e+00 1.38005e+00 617 2017 2 2.40086e+00 2.16397e+00 567 2017 3 3.11411e+00 1.86275e+00 248 2017 4 2.24860e+00 1.48652e+00 298 2017 5 3.14107e+00 3.15470e+00 183 2017 6 4.72864e+00 2.36781e+00 324 2017 7 3.04785e+00 1.35826e+00 161 2017 8 2.64789e+00 7.88126e-01 123 2017 9 9.63343e-01 1.27453e+00 256 2017 10 2.98031e+00 3.80294e+00 259 2017 11 8.13921e-01 1.07450e+00 466 2017 12 2.23147e+00 2.01125e+00 424 2018 1 3.20955e-01 4.78981e-01 377 2018 2 2.02815e+00 2.13516e+00 526 2018 3 1.19569e+00 1.46494e+00 321 2018 4 5.50894e+00 2.01846e+00 196 2018 5 3.98905e+00 1.83733e+00 121 2018 6 7.89938e+00 1.62214e+00 108 2018 7 4.37452e+00 1.57023e+00 118 2018 8 5.77897e+00 3.31984e+00 224 2018 9 2.92406e+00 1.18528e+00 124 2018 10 2.65822e+00 1.59074e+00 497 2018 11 1.48340e+00 1.34877e+00 662 2018 12 2.96461e+00 1.64547e+00 492 2019 1 4.27598e+00 2.58279e+00 722 2019 2 5.36914e+00 4.09426e+00 520 2019 3 4.84324e+00 3.23545e+00 479 2019 4 6.30232e+00 3.73537e+00 468 2019 5 2.00522e+00 5.84931e-01 50 2019 6 3.05323e+00 1.58043e+00 100 2019 7 8.45118e+00 2.13783e+00 64 2019 8 5.19312e+00 2.42710e+00 182 2019 9 nan nan 0 2019 10 4.99968e+00 3.00203e+00 432 2019 11 2.26199e+00 2.55726e+00 735 2019 12 8.79131e-01 1.07716e+00 722 2020 1 1.16729e+00 1.51822e+00 320 2020 2 3.79047e+00 2.74089e+00 614 2020 3 1.58385e+00 1.33781e+00 288 2020 4 3.40191e+00 3.02083e+00 494 2020 5 9.98169e+00 1.88061e+00 78 2020 6 3.77053e+00 2.60497e+00 343 2020 7 3.40560e+00 1.70148e+00 249 2020 8 3.58874e+00 1.48017e+00 90 2020 9 3.87750e+00 3.83538e+00 130 2020 10 2.42263e+00 3.12664e+00 310 2020 11 1.57127e+00 1.40314e+00 442 2020 12 1.65187e+00 1.58063e+00 598 2021 1 2.48864e+00 1.73766e+00 788 2021 2 2.91492e+00 3.44336e+00 664 2021 3 2.08988e+00 1.84437e+00 372 2021 4 7.66230e+00 3.84754e+00 214 2021 5 4.48774e+00 1.56794e+00 171 2021 6 nan nan 0 2021 7 3.87369e+00 1.76433e+00 212 2021 8 3.19953e+00 9.62715e-01 74 2021 9 3.13535e+00 3.01141e+00 217 2021 10 3.26846e+00 2.64219e+00 231 2021 11 1.76067e+00 1.77673e+00 761 2021 12 2.93362e+00 1.93396e+00 370 2022 1 3.55724e+00 2.63911e+00 1014 2022 2 1.26569e+00 1.32424e+00 437 2022 3 2.96637e+00 3.77140e+00 357 2022 4 4.60206e+00 1.58898e+00 118 2022 5 3.25150e+00 2.58730e+00 117 2022 6 6.17809e+00 2.58010e+00 193 2022 7 1.13170e+01 1.92796e+00 128 2022 8 7.78291e+00 6.89352e+00 295 2022 9 1.09862e+00 1.60589e+00 140 2022 10 1.57594e+00 1.66538e+00 384 2022 11 1.47934e+00 1.51211e+00 804 2022 12 7.76607e-01 1.12518e+00 1009 2023 1 3.03881e+00 2.06922e+00 777 2023 2 4.30822e+00 3.16681e+00 498 2023 3 7.69449e+00 5.54126e+00 579 2023 4 3.06069e+00 2.14331e+00 361 2023 5 3.53657e+00 2.60450e+00 117 2023 6 2.30375e+00 2.00537e+00 80 2023 7 4.30749e+00 1.01746e+00 38 2023 8 4.61415e+00 1.56613e+00 162 2023 9 2.78965e+00 2.37447e+00 255 2023 10 6.80343e+00 3.45461e+00 187 2023 11 2.18170e+00 2.22508e+00 471 2023 12 2.36128e+00 2.65530e+00 528 2024 1 4.67056e+00 3.70833e+00 653 2024 2 1.26732e+00 1.55840e+00 430 2024 3 5.89125e+00 4.84588e+00 453 2024 4 nan nan 0