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 6.29212e+01 1.01751e+00 376 2002 8 5.45501e+01 2.96508e+00 659 2002 9 4.42467e+01 4.39641e+00 571 2002 10 3.04328e+01 3.81779e+00 230 2002 11 2.03847e+01 6.62095e-01 148 2002 12 1.55869e+01 2.68178e-01 110 2003 1 nan nan 0 2003 2 2.91116e+01 2.48740e-01 36 2003 3 4.41076e+01 1.36176e+00 39 2003 4 5.23670e+01 2.25560e+00 143 2003 5 6.15872e+01 9.45785e-01 139 2003 6 6.46911e+01 3.89613e-01 306 2003 7 6.27623e+01 1.39842e+00 378 2003 8 5.52495e+01 2.62725e+00 347 2003 9 4.52710e+01 2.88631e+00 353 2003 10 3.33811e+01 1.63811e+00 451 2003 11 1.95993e+01 2.30279e+00 110 2003 12 1.62055e+01 8.43109e-01 120 2004 1 nan nan 0 2004 2 2.84229e+01 2.69442e+00 27 2004 3 4.36602e+01 1.65625e+00 99 2004 4 4.91786e+01 2.47867e+00 97 2004 5 6.10637e+01 1.65868e+00 295 2004 6 6.43945e+01 3.28056e-01 326 2004 7 6.26176e+01 1.52717e+00 239 2004 8 5.57524e+01 2.68694e+00 369 2004 9 4.26504e+01 2.57806e+00 703 2004 10 3.20977e+01 2.89134e+00 251 2004 11 2.21686e+01 1.04287e+00 171 2004 12 1.56280e+01 1.63398e-01 70 2005 1 2.19712e+01 3.38998e-02 19 2005 2 2.65906e+01 3.17465e+00 108 2005 3 4.18299e+01 3.40678e+00 97 2005 4 5.27281e+01 2.90983e+00 292 2005 5 6.14625e+01 2.07867e+00 346 2005 6 6.48180e+01 2.38360e-01 353 2005 7 6.20369e+01 1.55109e+00 454 2005 8 5.48415e+01 3.30128e+00 609 2005 9 4.52368e+01 3.98713e+00 433 2005 10 3.21915e+01 3.68435e+00 460 2005 11 2.26078e+01 2.44546e+00 160 2005 12 nan nan 0 2006 1 1.90597e+01 1.51379e+00 70 2006 2 3.02803e+01 3.16984e-02 28 2006 3 4.01253e+01 2.04461e+00 149 2006 4 5.25570e+01 3.58572e+00 230 2006 5 6.07060e+01 1.86423e+00 313 2006 6 6.45213e+01 3.03436e-01 406 2006 7 6.25567e+01 1.52094e+00 316 2006 8 5.60054e+01 2.95216e+00 490 2006 9 4.53213e+01 4.85005e+00 150 2006 10 3.14346e+01 4.21117e+00 262 2006 11 2.08430e+01 2.87377e+00 215 2006 12 1.53109e+01 1.78899e-01 105 2007 1 1.65480e+01 2.07560e-01 78 2007 2 2.88241e+01 1.77222e+00 29 2007 3 4.00508e+01 2.75671e+00 142 2007 4 5.27346e+01 1.63684e+00 110 2007 5 6.14414e+01 1.61316e+00 293 2007 6 6.46666e+01 2.43172e-01 438 2007 7 6.21498e+01 1.49565e+00 665 2007 8 5.41395e+01 3.11035e+00 477 2007 9 4.39415e+01 3.96002e+00 668 2007 10 3.09291e+01 4.25549e+00 470 2007 11 2.51763e+01 2.68843e-01 64 2007 12 1.54715e+01 3.15319e-02 16 2008 1 1.67869e+01 4.51215e-01 34 2008 2 3.10000e+01 3.57745e-03 5 2008 3 4.01208e+01 3.53128e+00 168 2008 4 5.30249e+01 3.69347e+00 132 2008 5 6.07994e+01 1.84365e+00 240 2008 6 6.47451e+01 1.94700e-01 254 2008 7 6.28098e+01 1.45165e+00 367 2008 8 5.42142e+01 2.96511e+00 774 2008 9 4.47725e+01 3.38973e+00 585 2008 10 3.10192e+01 3.15163e+00 537 2008 11 1.74213e+01 5.55927e-02 64 2008 12 nan nan 0 2009 1 1.64013e+01 2.63049e-02 29 2009 2 nan nan 0 2009 3 4.18716e+01 2.95070e+00 222 2009 4 5.18534e+01 2.13325e+00 161 2009 5 6.22217e+01 1.12698e+00 340 2009 6 6.45603e+01 2.34872e-01 312 2009 7 6.25812e+01 1.37326e+00 411 2009 8 5.47640e+01 3.07766e+00 346 2009 9 4.62936e+01 2.78349e+00 614 2009 10 3.28911e+01 4.02293e+00 65 2009 11 2.34153e+01 5.98389e-01 92 2009 12 nan nan 0 2010 1 nan nan 0 2010 2 2.63361e+01 2.22371e+00 63 2010 3 3.82601e+01 4.41203e+00 202 2010 4 5.27431e+01 3.87052e+00 104 2010 5 6.10530e+01 2.01010e+00 254 2010 6 6.44036e+01 4.38559e-01 421 2010 7 6.28639e+01 1.50344e+00 564 2010 8 5.41947e+01 3.01892e+00 555 2010 9 4.25834e+01 3.61877e+00 485 2010 10 3.16069e+01 3.30017e+00 574 2010 11 2.36072e+01 9.91534e-01 293 2010 12 1.53219e+01 7.44619e-02 40 2011 1 1.63548e+01 4.45841e-01 33 2011 2 2.86297e+01 1.39314e-01 8 2011 3 4.02334e+01 4.45813e+00 254 2011 4 5.01864e+01 3.04799e+00 97 2011 5 6.10104e+01 2.68425e+00 124 2011 6 6.44596e+01 3.69754e-01 243 2011 7 6.19656e+01 1.70556e+00 473 2011 8 5.42099e+01 2.05778e+00 573 2011 9 4.53888e+01 3.08410e+00 464 2011 10 3.45626e+01 2.57494e+00 342 2011 11 2.31954e+01 3.00635e+00 132 2011 12 1.59817e+01 3.11896e-01 130 2012 1 1.96252e+01 1.93319e+00 42 2012 2 2.60609e+01 1.73471e+00 89 2012 3 4.15323e+01 2.78711e+00 247 2012 4 5.26518e+01 2.68905e+00 169 2012 5 6.12383e+01 1.08815e+00 368 2012 6 6.45781e+01 3.07892e-01 400 2012 7 6.19804e+01 1.49663e+00 439 2012 8 5.46742e+01 3.20110e+00 556 2012 9 4.33860e+01 4.12536e+00 655 2012 10 3.22854e+01 2.84203e+00 244 2012 11 2.26092e+01 1.78319e+00 117 2012 12 nan nan 0 2013 1 1.70199e+01 5.52572e-02 35 2013 2 3.09500e+01 8.67640e-02 13 2013 3 4.29233e+01 2.64284e+00 94 2013 4 5.24817e+01 3.51261e+00 88 2013 5 6.02083e+01 2.07696e+00 173 2013 6 6.45547e+01 3.11832e-01 270 2013 7 6.30357e+01 8.15994e-01 470 2013 8 5.41635e+01 1.82954e+00 439 2013 9 4.29140e+01 4.17636e+00 646 2013 10 3.30607e+01 1.86530e+00 314 2013 11 2.01970e+01 5.01158e-01 94 2013 12 nan nan 0 2014 1 nan nan 0 2014 2 nan nan 0 2014 3 nan nan 0 2014 4 5.28770e+01 2.22868e+00 114 2014 5 6.17327e+01 2.10643e+00 343 2014 6 6.43474e+01 2.89070e-01 264 2014 7 6.20940e+01 1.33116e+00 366 2014 8 5.57861e+01 2.76097e+00 299 2014 9 4.34660e+01 3.43437e+00 657 2014 10 3.09782e+01 3.13250e+00 466 2014 11 2.49833e+01 3.33553e-02 26 2014 12 1.56878e+01 4.80915e-01 92 2015 1 2.07540e+01 0.00000e+00 4 2015 2 nan nan 0 2015 3 4.42802e+01 1.09524e+00 83 2015 4 5.32918e+01 3.66113e+00 220 2015 5 6.08065e+01 2.03671e+00 155 2015 6 6.43821e+01 5.07675e-01 292 2015 7 6.23393e+01 1.20385e+00 321 2015 8 5.70219e+01 1.93642e+00 490 2015 9 4.10872e+01 2.20158e+00 526 2015 10 3.15403e+01 2.58515e+00 305 2015 11 2.15199e+01 2.62570e+00 539 2015 12 1.66800e+01 0.00000e+00 1 2016 1 1.67623e+01 1.36480e+00 88 2016 2 2.94243e+01 1.13208e-01 30 2016 3 4.07089e+01 3.18802e+00 99 2016 4 5.22737e+01 1.95854e+00 175 2016 5 6.21810e+01 1.71083e+00 229 2016 6 6.44835e+01 3.93822e-01 407 2016 7 6.28736e+01 1.31347e+00 210 2016 8 5.61379e+01 3.07454e+00 730 2016 9 4.49857e+01 3.02939e+00 447 2016 10 3.20770e+01 3.49982e+00 213 2016 11 2.23597e+01 6.30006e-01 269 2016 12 1.55317e+01 3.31645e-02 24 2017 1 1.71698e+01 1.12596e+00 57 2017 2 2.77366e+01 1.15499e+00 95 2017 3 3.80486e+01 2.60133e+00 157 2017 4 5.16477e+01 2.58271e+00 58 2017 5 6.13225e+01 1.64804e+00 258 2017 6 6.42513e+01 2.64989e-01 215 2017 7 6.24921e+01 1.58856e+00 562 2017 8 5.48843e+01 3.21693e+00 447 2017 9 4.35790e+01 3.52761e+00 554 2017 10 3.26156e+01 2.16368e+00 259 2017 11 1.91877e+01 2.19499e+00 236 2017 12 nan nan 0 2018 1 2.02997e+01 1.30456e+00 82 2018 2 2.93837e+01 2.31977e+00 73 2018 3 3.85462e+01 2.97734e+00 209 2018 4 5.39893e+01 3.06995e+00 104 2018 5 6.06957e+01 2.06523e+00 260 2018 6 6.43408e+01 3.20760e-01 231 2018 7 6.27258e+01 1.46828e+00 546 2018 8 5.46262e+01 2.96756e+00 330 2018 9 4.49430e+01 2.75515e+00 421 2018 10 3.11876e+01 3.46305e+00 177 2018 11 2.02993e+01 5.70980e-01 121 2018 12 1.56454e+01 1.89778e-01 46 2019 1 1.77374e+01 1.26201e+00 74 2019 2 3.03788e+01 9.25621e-03 17 2019 3 4.16228e+01 2.55118e+00 84 2019 4 5.28200e+01 2.87874e+00 117 2019 5 6.10621e+01 2.00533e+00 153 2019 6 6.45160e+01 2.19009e-01 153 2019 7 6.28642e+01 1.11084e+00 402 2019 8 5.60480e+01 2.83783e+00 539 2019 9 4.27494e+01 3.19674e+00 353 2019 10 3.12076e+01 3.11273e+00 341 2019 11 2.03783e+01 6.13876e-02 56 2019 12 1.53599e+01 6.10619e-02 43 2020 1 1.63730e+01 4.66643e-02 42 2020 2 2.94568e+01 2.15430e+00 216 2020 3 3.76222e+01 2.59643e+00 131 2020 4 5.13002e+01 2.30653e+00 89 2020 5 6.15315e+01 1.73816e+00 351 2020 6 6.46036e+01 2.96404e-01 438 2020 7 6.30684e+01 1.17609e+00 435 2020 8 5.75105e+01 7.89740e-01 179 2020 9 4.29245e+01 3.03629e+00 300 2020 10 3.15638e+01 4.14189e+00 334 2020 11 2.18333e+01 2.33165e+00 438 2020 12 1.66830e+01 4.19911e-01 83 2021 1 1.69047e+01 5.66326e-01 46 2021 2 3.11588e+01 1.46138e+00 142 2021 3 3.83849e+01 3.55284e+00 310 2021 4 5.38188e+01 3.03464e+00 163 2021 5 6.04303e+01 1.57005e+00 260 2021 6 6.43167e+01 5.57023e-01 261 2021 7 6.24062e+01 1.62645e+00 136 2021 8 5.46730e+01 1.26407e+00 419 2021 9 4.32242e+01 3.91028e+00 694 2021 10 3.02132e+01 7.66843e-01 97 2021 11 2.06235e+01 2.41297e+00 238 2021 12 nan nan 0 2022 1 1.78677e+01 1.12693e-01 35 2022 2 3.03118e+01 2.50478e+00 58 2022 3 3.89404e+01 1.83661e+00 99 2022 4 5.27536e+01 3.09517e-03 18 2022 5 5.95146e+01 5.23268e-01 13 2022 6 6.45393e+01 4.19907e-01 534 2022 7 6.25604e+01 1.41100e+00 391 2022 8 5.51262e+01 2.74341e+00 665 2022 9 4.38072e+01 4.37929e+00 551 2022 10 3.19315e+01 4.35201e+00 613 2022 11 2.20676e+01 2.66468e+00 403 2022 12 1.67201e+01 5.59038e-02 40 2023 1 1.64302e+01 4.60205e-02 10 2023 2 2.66814e+01 6.89504e-02 60 2023 3 3.86076e+01 3.70948e+00 283 2023 4 5.22343e+01 2.44411e+00 590 2023 5 6.15611e+01 1.93349e+00 413 2023 6 6.45490e+01 3.03535e-01 208 2023 7 6.28207e+01 1.40158e+00 388 2023 8 5.39675e+01 2.83295e+00 701 2023 9 4.52481e+01 3.28171e+00 534 2023 10 3.37489e+01 4.06314e+00 222 2023 11 2.15273e+01 1.47002e+00 369 2023 12 1.57224e+01 2.91850e-01 180 2024 1 nan nan 0 2024 2 2.51692e+01 2.96379e+00 339 2024 3 3.95006e+01 4.66537e+00 345 2024 4 nan nan 0