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 1.93898e+01 2.69405e+00 256 2002 8 2.49070e+01 7.10520e+00 513 2002 9 1.92433e+01 8.96022e+00 509 2002 10 1.78961e+01 6.05431e+00 828 2002 11 1.30913e+01 5.72521e+00 877 2002 12 1.31204e+01 6.88574e+00 637 2003 1 9.04245e+00 5.37353e+00 965 2003 2 1.24433e+01 6.78200e+00 512 2003 3 9.99967e-01 1.67564e+00 256 2003 4 3.31216e+01 3.12680e+01 139 2003 5 1.19565e+01 2.18806e+01 262 2003 6 1.60211e+01 1.91055e+01 380 2003 7 1.98861e+01 1.27699e+01 205 2003 8 2.46014e+01 1.98964e+01 430 2003 9 1.91772e+01 8.97215e+00 573 2003 10 1.96638e+01 1.47586e+01 1080 2003 11 1.24627e+01 7.32686e+00 1121 2003 12 1.48477e+01 6.92881e+00 775 2004 1 1.21660e+01 7.19630e+00 836 2004 2 1.54107e+01 4.77530e+00 448 2004 3 8.03735e+00 8.13126e+00 755 2004 4 1.23272e+01 5.35713e+00 457 2004 5 1.72374e+01 5.08928e+00 640 2004 6 1.81894e+01 7.18835e+00 464 2004 7 1.44857e+01 8.14909e+00 390 2004 8 1.93194e+01 1.15661e+01 505 2004 9 1.41626e+01 1.45706e+01 384 2004 10 3.59797e+00 5.59994e+00 300 2004 11 2.08179e-01 3.26069e-01 482 2004 12 4.22447e+00 1.05647e+01 619 2005 1 3.27512e+00 3.64020e+00 731 2005 2 2.98749e+00 2.09685e+00 618 2005 3 6.10162e+00 5.48260e+00 576 2005 4 1.42392e+01 1.98949e+01 594 2005 5 1.91818e+01 1.80350e+01 485 2005 6 1.57225e+01 1.44875e+01 436 2005 7 1.13105e+01 1.06656e+01 383 2005 8 8.08038e+00 5.81589e+00 233 2005 9 1.24253e+01 6.98115e+00 297 2005 10 1.61877e+01 9.73001e+00 988 2005 11 1.38444e+01 5.70819e+00 1024 2005 12 1.32003e+01 8.14284e+00 1026 2006 1 7.44702e+00 5.64002e+00 740 2006 2 4.77611e+00 5.41781e+00 704 2006 3 7.99194e+00 1.00591e+01 942 2006 4 4.29867e+00 3.41789e+00 294 2006 5 1.69446e+01 6.84856e+00 519 2006 6 2.11882e+01 8.82477e+00 446 2006 7 1.18297e+01 6.71918e+00 326 2006 8 1.70192e+01 7.43905e+00 248 2006 9 1.93408e+01 8.14943e+00 744 2006 10 1.87987e+01 9.37522e+00 903 2006 11 1.74133e+01 8.48200e+00 926 2006 12 2.11434e+01 6.76794e+00 600 2007 1 2.04334e+01 3.46656e+00 384 2007 2 2.46397e+01 8.30475e+00 727 2007 3 1.81502e+01 7.42913e+00 1217 2007 4 2.15511e+01 9.36627e+00 706 2007 5 2.44001e+01 6.90470e+00 348 2007 6 2.30628e+01 4.76263e+00 502 2007 7 1.57270e+01 3.40010e+00 416 2007 8 2.01196e+01 6.70375e+00 535 2007 9 1.78750e+01 8.81483e+00 603 2007 10 1.87372e+01 6.29242e+00 704 2007 11 2.29530e+01 7.86501e+00 1195 2007 12 2.15073e+01 1.02574e+01 853 2008 1 2.36644e+01 1.13031e+01 640 2008 2 1.68934e+01 6.79625e+00 1045 2008 3 9.94485e+00 9.52701e+00 716 2008 4 1.75846e+01 1.66670e+01 698 2008 5 1.15955e+01 1.11877e+01 637 2008 6 1.77575e+01 1.35310e+01 401 2008 7 1.64817e+01 8.26043e+00 495 2008 8 1.70550e+01 4.64849e+00 322 2008 9 1.38727e+01 7.82516e+00 740 2008 10 1.11223e+01 6.57797e+00 948 2008 11 1.41746e+01 6.28805e+00 1023 2008 12 7.62356e+00 4.95855e+00 843 2009 1 1.21812e+01 9.54249e+00 704 2009 2 9.78885e+00 4.48607e+00 1084 2009 3 1.52526e+01 7.42055e+00 937 2009 4 1.11298e+01 8.93740e+00 448 2009 5 9.28183e+00 9.26323e+00 285 2009 6 1.51651e+01 1.04354e+01 451 2009 7 2.47766e+01 1.19203e+01 245 2009 8 2.11565e+01 1.27839e+01 504 2009 9 1.82770e+01 1.21196e+01 844 2009 10 1.78675e+01 5.63191e+00 828 2009 11 1.46773e+01 8.24547e+00 738 2009 12 1.58204e+01 8.39311e+00 256 2010 1 9.06174e+00 4.50233e+00 896 2010 2 3.60727e+00 3.15902e+00 704 2010 3 1.88413e+00 1.35697e+00 899 2010 4 3.64690e+00 5.52807e+00 282 2010 5 1.29002e+01 1.26495e+01 574 2010 6 1.96015e+01 7.34247e+00 491 2010 7 1.55450e+01 8.88912e+00 414 2010 8 2.11440e+01 4.84999e+00 195 2010 9 1.82895e+01 9.63430e+00 703 2010 10 1.62237e+01 6.40134e+00 1455 2010 11 1.73127e+01 6.10505e+00 1164 2010 12 1.80335e+01 1.01391e+01 1056 2011 1 2.17707e+01 6.48723e+00 661 2011 2 2.23233e+01 4.60786e+00 772 2011 3 2.16240e+01 6.68852e+00 825 2011 4 1.98186e+01 5.59360e+00 948 2011 5 1.72072e+01 7.18453e+00 789 2011 6 1.92985e+01 3.70498e+00 256 2011 7 1.73700e+01 5.20787e+00 369 2011 8 2.09262e+01 8.60695e+00 631 2011 9 1.80649e+01 8.95639e+00 723 2011 10 2.03023e+01 8.78434e+00 1087 2011 11 2.75121e+01 7.74119e+00 1180 2011 12 2.81852e+01 6.27939e+00 1024 2012 1 2.68230e+01 9.72970e+00 1064 2012 2 2.92112e+01 3.96155e+00 193 2012 3 2.61542e+01 8.33510e+00 827 2012 4 2.50517e+01 6.07582e+00 896 2012 5 2.43872e+01 5.21683e+00 320 2012 6 1.07935e+01 3.99527e+00 249 2012 7 1.07644e+01 1.32199e+01 494 2012 8 1.21705e+01 1.58649e+01 393 2012 9 1.02721e+01 1.30971e+01 410 2012 10 9.10317e+00 1.90374e+01 767 2012 11 1.21556e+01 6.80166e+00 1160 2012 12 6.87915e+00 5.34107e+00 736 2013 1 1.47252e+01 8.20327e+00 704 2013 2 1.68297e+01 5.92532e+00 679 2013 3 1.58345e+01 9.72124e+00 704 2013 4 9.60262e+00 1.24505e+01 569 2013 5 1.22310e+01 8.29529e+00 467 2013 6 1.88138e+01 1.33280e+01 495 2013 7 1.17460e+01 8.47186e+00 98 2013 8 1.45012e+01 1.68375e+01 256 2013 9 1.40589e+01 1.75020e+01 685 2013 10 1.93510e+01 1.63841e+01 954 2013 11 9.85479e+00 6.79130e+00 371 2013 12 1.29858e+01 7.04488e+00 632 2014 1 1.72516e+01 6.64736e+00 510 2014 2 9.28928e+00 3.88318e+00 703 2014 3 3.96831e+00 2.62893e+00 588 2014 4 7.37014e+00 4.82998e+00 371 2014 5 1.70772e+01 2.65206e+01 179 2014 6 9.20708e+00 1.29602e+01 305 2014 7 1.32316e+01 1.06672e+01 640 2014 8 1.45448e+01 6.12141e+00 508 2014 9 1.59289e+01 1.09063e+01 309 2014 10 1.17902e+01 1.15212e+01 1307 2014 11 1.36391e+01 6.13150e+00 1048 2014 12 1.61775e+01 1.02525e+01 557 2015 1 1.61778e+01 8.67763e+00 827 2015 2 1.95087e+01 6.17461e+00 768 2015 3 6.06470e+00 7.44674e+00 469 2015 4 1.77040e+01 8.17888e+00 153 2015 5 1.73188e+01 1.30670e+01 826 2015 6 1.72788e+01 9.77044e+00 445 2015 7 2.16767e+01 1.74595e+01 128 2015 8 1.14352e+01 6.87093e+00 410 2015 9 1.37788e+01 4.20523e+00 307 2015 10 1.24596e+01 7.24353e+00 894 2015 11 1.01296e+01 7.26171e+00 696 2015 12 1.64658e+01 7.09367e+00 498 2016 1 1.01598e+01 6.98325e+00 640 2016 2 9.05952e+00 7.86547e+00 1216 2016 3 8.33934e+00 4.51288e+00 722 2016 4 1.44602e+01 1.27633e+01 412 2016 5 1.11694e+01 6.92381e+00 712 2016 6 1.36529e+01 4.75206e+00 611 2016 7 1.38988e+01 6.69156e+00 903 2016 8 1.84981e+01 1.20251e+01 895 2016 9 1.43801e+01 9.34573e+00 720 2016 10 1.83392e+01 9.06680e+00 1074 2016 11 2.29917e+01 5.14756e+00 1049 2016 12 2.14584e+01 5.76806e+00 852 2017 1 1.89393e+01 1.04416e+01 668 2017 2 1.21112e+01 5.48417e+00 1088 2017 3 1.67329e+01 8.23203e+00 937 2017 4 1.71309e+01 5.55131e+00 816 2017 5 1.41143e+01 6.42237e+00 623 2017 6 2.27396e+01 7.73680e+00 357 2017 7 1.71061e+01 1.17433e+01 229 2017 8 1.22308e+01 9.41330e+00 531 2017 9 1.07843e+01 9.88810e+00 685 2017 10 4.75490e+00 1.31274e+01 469 2017 11 1.35838e+01 6.46260e+00 1314 2017 12 1.63400e+01 8.37550e+00 824 2018 1 2.02831e+01 6.55610e+00 640 2018 2 1.99942e+01 7.20549e+00 512 2018 3 2.01682e+01 7.40179e+00 834 2018 4 1.39942e+01 7.40908e+00 641 2018 5 1.44238e+01 8.41611e+00 508 2018 6 1.49463e+01 1.05976e+01 385 2018 7 1.93089e+01 1.96264e+01 256 2018 8 1.97049e+01 1.72713e+01 505 2018 9 2.32933e+01 1.35328e+01 806 2018 10 1.60326e+01 1.37395e+01 1063 2018 11 4.24398e+00 2.61653e+00 262 2018 12 7.04852e+00 7.13695e+00 766 2019 1 9.79659e-01 1.27437e+00 788 2019 2 6.48028e+00 1.03180e+01 347 2019 3 7.54595e+00 7.12105e+00 820 2019 4 3.82755e+00 2.56775e+00 412 2019 5 1.23260e+01 6.71036e+00 778 2019 6 1.58030e+01 3.41369e+00 185 2019 7 1.66321e+01 1.29912e+01 279 2019 8 1.42556e+01 1.47972e+01 525 2019 9 1.64708e+01 7.64580e+00 926 2019 10 1.27838e+01 8.74860e+00 722 2019 11 1.55352e+01 6.43587e+00 958 2019 12 1.14734e+01 8.09857e+00 588 2020 1 1.50416e+01 5.48433e+00 659 2020 2 1.45774e+01 8.56687e+00 576 2020 3 1.63025e+01 1.30450e+01 704 2020 4 7.82916e+00 3.17029e+00 455 2020 5 1.16516e+01 6.76634e+00 809 2020 6 1.51321e+01 1.07185e+01 523 2020 7 1.96428e+01 1.41464e+01 316 2020 8 1.03354e+01 6.51919e+00 195 2020 9 1.53539e+01 1.92400e+01 393 2020 10 7.88047e+00 8.42680e+00 958 2020 11 2.60202e+00 2.87378e+00 1012 2020 12 9.89539e+00 5.98660e+00 845 2021 1 6.95817e+00 4.02311e+00 640 2021 2 1.69305e+00 9.08395e-01 512 2021 3 1.39463e+00 1.93708e+00 255 2021 4 2.40542e+00 4.38892e+00 605 2021 5 6.48539e+00 8.99718e+00 768 2021 6 2.46137e+01 1.69397e+01 308 2021 7 1.27675e+01 9.42316e+00 244 2021 8 2.37912e+01 3.22923e+01 190 2021 9 1.84242e+01 2.35113e+01 600 2021 10 1.09040e+01 1.43850e+01 745 2021 11 6.43777e+00 8.75962e+00 960 2021 12 6.95759e+00 9.44247e+00 640 2022 1 5.60839e+00 4.33998e+00 887 2022 2 1.01765e+01 6.27566e+00 1011 2022 3 9.21425e+00 4.89142e+00 774 2022 4 4.80757e+00 6.29760e+00 172 2022 5 1.34232e+01 1.25965e+01 512 2022 6 1.71600e+01 8.72588e+00 466 2022 7 1.69685e+01 1.21138e+01 393 2022 8 2.18361e+01 7.37333e+00 474 2022 9 2.47691e+01 1.55809e+01 428 2022 10 1.22132e+01 6.14608e+00 1157 2022 11 1.33596e+01 5.15640e+00 408 2022 12 1.47615e+01 7.90510e+00 1009 2023 1 2.00320e+01 5.20035e+00 832 2023 2 1.83808e+01 6.89594e+00 638 2023 3 1.68728e+01 6.29650e+00 750 2023 4 1.54739e+01 9.85927e+00 384 2023 5 1.81930e+01 1.05841e+01 378 2023 6 2.63940e+01 5.61162e+00 228 2023 7 1.89056e+01 1.02521e+01 580 2023 8 1.97655e+01 1.70157e+01 578 2023 9 1.10216e+01 1.12507e+01 574 2023 10 1.63630e+01 9.15432e+00 728 2023 11 1.64388e+01 9.11378e+00 744 2023 12 1.08551e+01 7.52457e+00 384 2024 1 1.94242e+00 2.56358e+00 531 2024 2 6.91596e+00 5.67079e+00 651 2024 3 1.04733e+01 1.01169e+01 361 2024 4 nan nan 0