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 4.82999e+00 1.33991e+00 183 2002 8 6.34080e+00 3.82589e-01 132 2002 9 3.33777e+00 1.77445e-01 165 2002 10 4.96137e+00 1.63009e+00 884 2002 11 4.44024e+00 8.70272e-01 518 2002 12 5.09583e+00 7.77507e-01 450 2003 1 3.53959e+00 7.87409e-01 688 2003 2 3.09601e+00 3.01557e-01 832 2003 3 3.08300e+00 5.99520e-01 515 2003 4 3.96127e+00 1.97314e-01 120 2003 5 3.12321e+00 3.42652e-01 442 2003 6 3.15180e+00 2.88266e-01 97 2003 7 2.30762e+00 4.12015e-01 41 2003 8 2.48624e+00 1.50445e-01 176 2003 9 4.10699e+00 1.50603e+00 151 2003 10 6.77026e+00 2.44887e+00 1024 2003 11 5.33969e+00 1.73535e+00 904 2003 12 3.55906e+00 1.20307e+00 499 2004 1 2.98923e+00 1.02995e+00 954 2004 2 2.37943e+00 3.86893e-01 739 2004 3 1.97452e+00 2.20745e-01 560 2004 4 2.00476e+00 1.56214e-01 442 2004 5 2.08641e+00 2.34399e-01 236 2004 6 2.76424e+00 5.80119e-01 192 2004 7 3.38109e+00 2.51120e-01 192 2004 8 3.20614e+00 4.27604e-01 411 2004 9 4.50673e+00 9.72953e-02 59 2004 10 6.23275e+00 1.67079e+00 669 2004 11 6.67689e+00 2.48927e+00 888 2004 12 7.11178e+00 3.70581e+00 414 2005 1 3.50637e+00 1.22722e+00 352 2005 2 2.25541e+00 3.90148e-01 729 2005 3 2.24324e+00 5.21963e-01 480 2005 4 1.75190e+00 1.71951e-01 279 2005 5 2.18119e+00 4.20388e-01 192 2005 6 3.37166e+00 2.45611e-01 64 2005 7 3.55160e+00 6.93601e-01 178 2005 8 5.59254e+00 9.05766e-01 176 2005 9 8.62413e+00 2.23413e+00 253 2005 10 7.92275e+00 1.74689e+00 249 2005 11 5.96207e+00 1.24894e+00 610 2005 12 4.12641e+00 8.13916e-01 938 2006 1 3.66171e+00 1.17401e-01 320 2006 2 3.25748e+00 2.49407e-01 330 2006 3 3.18394e+00 2.43332e-01 79 2006 4 2.92835e+00 3.18947e-01 257 2006 5 2.79016e+00 5.91906e-01 596 2006 6 3.07443e+00 4.37079e-01 372 2006 7 3.47034e+00 8.88247e-02 64 2006 8 3.92426e+00 3.31912e-01 186 2006 9 6.05849e+00 2.69805e+00 447 2006 10 4.54373e+00 7.41832e-01 825 2006 11 5.48769e+00 1.58665e+00 692 2006 12 3.97523e+00 5.58581e-01 347 2007 1 3.89509e+00 7.27252e-01 653 2007 2 3.63363e+00 4.89543e-01 566 2007 3 1.94644e+00 3.51109e-01 553 2007 4 2.13273e+00 7.03226e-01 212 2007 5 2.41286e+00 4.23948e-01 277 2007 6 4.33405e+00 1.92554e+00 461 2007 7 4.17373e+00 9.85807e-01 479 2007 8 4.42205e+00 1.70968e+00 489 2007 9 3.73940e+00 6.13760e-01 397 2007 10 5.12910e+00 1.60799e+00 529 2007 11 5.39417e+00 1.89622e+00 1158 2007 12 4.26952e+00 2.06064e+00 931 2008 1 3.51275e+00 9.90412e-01 531 2008 2 2.80556e+00 3.11360e-01 492 2008 3 2.48278e+00 5.48913e-01 301 2008 4 2.93002e+00 7.13373e-01 157 2008 5 1.81416e+00 3.08941e-01 197 2008 6 2.33064e+00 3.30447e-01 305 2008 7 2.75644e+00 8.34328e-02 256 2008 8 4.49967e+00 9.94949e-01 198 2008 9 4.63469e+00 1.16205e+00 359 2008 10 6.23845e+00 1.18123e+00 575 2008 11 5.47741e+00 2.79536e+00 907 2008 12 7.37573e+00 5.13134e+00 1006 2009 1 3.37176e+00 9.55282e-01 758 2009 2 2.12375e+00 1.52944e-01 729 2009 3 1.56189e+00 7.08045e-02 281 2009 4 1.99612e+00 5.60855e-02 65 2009 5 2.33405e+00 2.89066e-01 307 2009 6 2.21253e+00 9.66979e-02 136 2009 7 8.97614e+00 1.33232e+00 64 2009 8 4.89783e+00 1.51347e+00 309 2009 9 6.68111e+00 5.04579e+00 310 2009 10 7.64003e+00 3.55969e+00 770 2009 11 4.07752e+00 8.37976e-01 582 2009 12 4.90670e+00 1.34414e+00 512 2010 1 3.30196e+00 5.40202e-01 384 2010 2 2.34450e+00 3.37523e-01 208 2010 3 nan nan 0 2010 4 2.17999e+00 1.70477e-01 79 2010 5 2.32837e+00 4.07470e-01 483 2010 6 2.29542e+00 1.73060e-01 384 2010 7 3.51881e+00 3.95818e-01 249 2010 8 3.35231e+00 6.06829e-01 466 2010 9 5.07725e+00 1.35720e+00 254 2010 10 5.21664e+00 1.63014e+00 879 2010 11 3.86075e+00 1.59263e+00 678 2010 12 2.60035e+00 2.03769e-01 725 2011 1 2.44468e+00 1.84847e-01 588 2011 2 2.06866e+00 1.78618e-01 376 2011 3 1.98870e+00 2.23209e-01 331 2011 4 2.15731e+00 5.56109e-01 313 2011 5 2.07315e+00 3.52555e-01 192 2011 6 1.79008e+00 0.00000e+00 2 2011 7 2.45886e+00 9.73433e-02 10 2011 8 nan nan 0 2011 9 3.31232e+00 6.59239e-01 427 2011 10 5.08266e+00 8.18171e-01 354 2011 11 5.03075e+00 1.38820e+00 997 2011 12 5.60231e+00 1.81387e+00 895 2012 1 5.20905e+00 8.12442e-01 702 2012 2 4.10617e+00 9.60123e-01 700 2012 3 3.12054e+00 7.93918e-01 661 2012 4 2.62876e+00 4.00556e-01 384 2012 5 3.20888e+00 7.95139e-01 283 2012 6 2.74223e+00 6.02298e-01 183 2012 7 2.84196e+00 3.38905e-01 143 2012 8 3.39386e+00 2.11203e-01 291 2012 9 4.23993e+00 1.56839e+00 365 2012 10 6.37524e+00 1.87728e+00 666 2012 11 7.73851e+00 2.91965e+00 694 2012 12 6.67391e+00 2.30878e+00 296 2013 1 3.17572e+00 4.31360e-01 709 2013 2 3.55392e+00 7.22022e-01 834 2013 3 2.94602e+00 5.64599e-01 558 2013 4 2.58308e+00 3.69694e-01 483 2013 5 2.65055e+00 4.74363e-01 376 2013 6 2.02631e+00 1.45908e-01 10 2013 7 3.90088e+00 3.54985e-01 64 2013 8 2.92207e+00 1.04573e+00 287 2013 9 3.62101e+00 1.08804e+00 360 2013 10 5.88651e+00 1.82488e+00 940 2013 11 4.17148e+00 1.15690e+00 445 2013 12 4.60843e+00 1.37221e+00 634 2014 1 4.77269e+00 6.77141e-01 590 2014 2 4.21722e+00 9.89154e-01 941 2014 3 3.62595e+00 1.00528e+00 813 2014 4 3.05472e+00 1.40707e+00 510 2014 5 2.90647e+00 3.65084e-01 253 2014 6 2.74347e+00 3.97163e-01 392 2014 7 2.76496e+00 4.54300e-01 267 2014 8 3.29323e+00 5.07753e-01 364 2014 9 4.45084e+00 1.31250e-01 128 2014 10 7.87486e+00 3.00746e+00 881 2014 11 5.32014e+00 1.87257e+00 932 2014 12 5.97882e+00 1.76189e+00 896 2015 1 3.08058e+00 6.91944e-01 725 2015 2 2.32135e+00 3.43372e-01 496 2015 3 2.60404e+00 6.98134e-01 876 2015 4 2.45968e+00 5.71546e-01 494 2015 5 2.57711e+00 4.31578e-01 315 2015 6 3.34687e+00 6.26879e-01 398 2015 7 3.88101e+00 5.79295e-01 199 2015 8 3.84812e+00 6.43110e-01 320 2015 9 4.21542e+00 1.24167e+00 429 2015 10 8.32042e+00 5.36053e+00 469 2015 11 8.62313e+00 3.86517e+00 879 2015 12 5.16077e+00 1.03222e+00 576 2016 1 5.62007e+00 1.64876e+00 192 2016 2 4.81019e+00 6.99047e-01 249 2016 3 6.04385e+00 2.18560e+00 218 2016 4 4.47059e+00 9.95304e-01 576 2016 5 3.68560e+00 5.64911e-01 384 2016 6 4.20241e+00 5.52109e-01 322 2016 7 4.30946e+00 4.11452e-01 192 2016 8 2.84604e+00 8.82073e-02 323 2016 9 3.70141e+00 2.22297e-01 258 2016 10 5.08945e+00 1.06935e+00 375 2016 11 7.43397e+00 3.35668e+00 1043 2016 12 3.66162e+00 1.38745e+00 783 2017 1 2.65941e+00 3.42450e-01 581 2017 2 2.87864e+00 8.47533e-01 991 2017 3 2.01718e+00 2.81905e-01 544 2017 4 2.34811e+00 6.37102e-02 64 2017 5 2.68220e+00 7.93391e-01 453 2017 6 2.12547e+00 1.99228e-01 117 2017 7 2.25573e+00 9.57101e-02 128 2017 8 4.84561e+00 3.29018e+00 177 2017 9 7.30956e+00 5.90468e+00 400 2017 10 1.02344e+01 3.97622e+00 326 2017 11 7.16668e+00 1.67102e+00 952 2017 12 8.11141e+00 3.92980e+00 1275 2018 1 4.25723e+00 8.41438e-01 382 2018 2 3.35200e+00 6.97424e-01 806 2018 3 2.82459e+00 8.68019e-01 706 2018 4 3.92389e+00 1.04877e+00 616 2018 5 nan nan 0 2018 6 1.93103e+00 1.71574e-01 105 2018 7 4.85770e+00 1.96444e+00 314 2018 8 7.65963e+00 6.11368e-01 16 2018 9 4.40007e+00 1.18634e+00 349 2018 10 6.26847e+00 1.99633e+00 967 2018 11 5.93285e+00 2.36683e+00 734 2018 12 5.91496e+00 2.12864e+00 551 2019 1 4.42175e+00 1.55487e+00 685 2019 2 4.35146e+00 7.98247e-01 1047 2019 3 3.14973e+00 1.05134e+00 705 2019 4 2.68314e+00 3.57902e-01 610 2019 5 2.93716e+00 4.96744e-01 573 2019 6 3.65691e+00 8.15845e-01 549 2019 7 3.62856e+00 1.27667e-01 130 2019 8 5.68007e+00 3.42535e+00 208 2019 9 6.87962e+00 1.96429e+00 426 2019 10 6.66097e+00 2.36157e+00 567 2019 11 5.81040e+00 3.35517e+00 847 2019 12 4.76764e+00 1.93665e+00 692 2020 1 5.89359e+00 3.92459e+00 919 2020 2 3.13160e+00 8.05512e-01 861 2020 3 2.20328e+00 2.56738e-01 622 2020 4 2.58427e+00 3.42046e-01 320 2020 5 2.96145e+00 4.09468e-01 448 2020 6 2.97110e+00 6.36318e-01 304 2020 7 3.93354e+00 6.17441e-01 191 2020 8 4.27756e+00 1.73281e+00 298 2020 9 3.52489e+00 1.57279e+00 398 2020 10 3.97843e+00 1.66233e+00 540 2020 11 8.24465e+00 3.01845e+00 326 2020 12 6.04652e+00 1.27524e+00 918 2021 1 7.04761e+00 1.53689e+00 728 2021 2 4.02062e+00 1.55252e+00 846 2021 3 2.85390e+00 6.06471e-01 844 2021 4 2.61043e+00 5.59471e-01 576 2021 5 2.46382e+00 2.27492e-01 141 2021 6 2.55099e+00 1.01772e+00 176 2021 7 3.30722e+00 7.60534e-01 354 2021 8 3.36762e+00 6.59722e-01 164 2021 9 8.63845e+00 6.59538e+00 401 2021 10 6.34152e+00 2.25336e+00 508 2021 11 7.14275e+00 4.60617e+00 572 2021 12 5.62113e+00 1.83964e+00 1070 2022 1 4.09656e+00 9.09347e-01 385 2022 2 2.38090e+00 3.19081e-01 664 2022 3 2.81658e+00 9.33400e-01 551 2022 4 1.84272e+00 1.37226e-01 192 2022 5 1.91191e+00 2.38880e-01 383 2022 6 4.04570e+00 2.23133e+00 289 2022 7 3.43500e+00 4.04504e-01 249 2022 8 1.81457e+00 4.34255e-01 168 2022 9 6.10016e+00 4.43357e+00 373 2022 10 6.40740e+00 1.65524e+00 780 2022 11 6.10938e+00 1.70014e+00 796 2022 12 5.51000e+00 2.07521e+00 870 2023 1 5.99410e+00 1.81460e+00 1092 2023 2 4.35616e+00 1.44561e+00 825 2023 3 3.06636e+00 7.06252e-01 775 2023 4 2.45050e+00 2.33507e-01 384 2023 5 2.62112e+00 4.77476e-01 608 2023 6 2.37184e+00 1.62281e-01 375 2023 7 2.68821e+00 4.61049e-01 265 2023 8 2.93494e+00 1.04724e+00 178 2023 9 2.00535e+00 1.56637e-01 426 2023 10 1.02313e+01 4.84897e+00 611 2023 11 8.08477e+00 2.96361e+00 852 2023 12 9.15969e+00 6.10250e+00 404 2024 1 nan nan 0 2024 2 3.39906e+00 5.36789e-01 699 2024 3 3.12845e+00 4.55199e-01 501 2024 4 3.20131e+00 6.80466e-02 64