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 2.68923e+01 3.77035e+00 274 2002 8 2.50919e+01 4.30797e+00 192 2002 9 2.09737e+01 3.36687e+00 131 2002 10 1.67509e+01 6.61789e+00 449 2002 11 2.14427e+01 4.98638e+00 886 2002 12 2.23604e+01 3.97678e+00 1025 2003 1 2.52620e+01 3.60961e+00 842 2003 2 2.32826e+01 4.18496e+00 687 2003 3 2.52159e+01 3.77912e+00 465 2003 4 2.44720e+01 6.31740e+00 317 2003 5 2.97015e+01 5.00917e+00 255 2003 6 2.41527e+01 1.83450e+00 109 2003 7 2.75171e+01 2.04999e+00 64 2003 8 2.62416e+01 3.44021e+00 127 2003 9 2.07212e+01 4.09949e+00 271 2003 10 2.17072e+01 6.30794e+00 483 2003 11 1.23528e+01 6.69057e+00 380 2003 12 2.23627e+01 4.56121e+00 753 2004 1 2.67499e+01 4.64937e+00 991 2004 2 2.37814e+01 5.26541e+00 694 2004 3 2.83129e+01 4.43518e+00 571 2004 4 2.81952e+01 4.91212e+00 524 2004 5 nan nan 0 2004 6 2.31578e+01 5.57664e+00 224 2004 7 2.10673e+01 6.20070e+00 341 2004 8 2.36170e+01 3.45349e+00 299 2004 9 2.30965e+01 9.37789e+00 111 2004 10 1.90943e+01 5.25184e+00 463 2004 11 2.58625e+01 5.03201e+00 653 2004 12 2.33742e+01 5.38884e+00 750 2005 1 2.41774e+01 3.67746e+00 581 2005 2 2.61454e+01 3.51380e+00 475 2005 3 2.81710e+01 4.64898e+00 638 2005 4 2.68023e+01 3.29709e+00 506 2005 5 2.56005e+01 9.33457e+00 147 2005 6 2.94901e+01 2.58016e+00 64 2005 7 2.66369e+01 1.43889e+00 64 2005 8 2.70489e+01 3.88375e+00 64 2005 9 2.46651e+01 4.36857e+00 317 2005 10 6.45301e+00 3.48846e+00 252 2005 11 1.78298e+01 5.45879e+00 709 2005 12 2.20619e+01 6.46587e+00 963 2006 1 2.32026e+01 7.51549e+00 590 2006 2 2.55999e+01 3.23258e+00 687 2006 3 3.02004e+01 3.89915e+00 696 2006 4 2.80591e+01 3.78164e+00 369 2006 5 2.59465e+01 4.54512e+00 383 2006 6 nan nan 0 2006 7 2.98632e+01 2.34677e+00 45 2006 8 2.40318e+01 2.93112e+00 64 2006 9 2.55852e+01 3.87663e+00 245 2006 10 2.31152e+01 4.68612e+00 448 2006 11 2.56785e+01 4.89684e+00 632 2006 12 2.15459e+01 4.03976e+00 896 2007 1 2.28779e+01 5.25157e+00 898 2007 2 2.71699e+01 4.39064e+00 687 2007 3 2.92067e+01 4.48074e+00 382 2007 4 2.74754e+01 4.33397e+00 320 2007 5 2.77245e+01 2.58661e+00 228 2007 6 3.15254e+01 3.16648e+00 150 2007 7 2.39741e+01 3.50130e+00 192 2007 8 2.13652e+01 6.87554e+00 98 2007 9 1.45609e+01 3.17553e+00 268 2007 10 2.05255e+01 3.07591e+00 253 2007 11 1.24883e+01 4.42613e+00 332 2007 12 1.75104e+01 7.65589e+00 1024 2008 1 2.47806e+01 5.27885e+00 960 2008 2 2.53425e+01 4.69477e+00 639 2008 3 2.84172e+01 3.77275e+00 448 2008 4 2.95807e+01 5.39789e+00 220 2008 5 2.34968e+01 2.82834e+00 350 2008 6 2.74628e+01 2.75273e+00 128 2008 7 2.66820e+01 4.09174e+00 128 2008 8 2.70692e+01 3.64627e+00 184 2008 9 8.78828e+00 3.17962e+00 127 2008 10 2.10192e+01 8.56030e+00 567 2008 11 2.60866e+01 3.52746e+00 571 2008 12 2.63169e+01 4.49344e+00 1164 2009 1 2.63614e+01 4.76195e+00 1141 2009 2 2.49679e+01 3.88387e+00 602 2009 3 2.74770e+01 3.76590e+00 399 2009 4 2.68593e+01 4.87694e+00 363 2009 5 2.49132e+01 4.57504e+00 128 2009 6 2.08907e+01 5.66178e+00 154 2009 7 2.66394e+01 3.12543e+00 225 2009 8 3.07226e+01 5.61548e+00 173 2009 9 2.67588e+01 5.14989e+00 272 2009 10 2.22652e+01 4.75501e+00 416 2009 11 1.48293e+01 4.77048e+00 922 2009 12 1.95167e+01 4.75997e+00 880 2010 1 2.35196e+01 4.06203e+00 706 2010 2 2.70917e+01 3.95850e+00 803 2010 3 2.63233e+01 4.06336e+00 390 2010 4 3.06830e+01 7.46700e+00 128 2010 5 2.49863e+01 3.79193e+00 345 2010 6 2.09765e+01 3.50354e+00 70 2010 7 2.37825e+01 4.25469e+00 123 2010 8 2.11824e+01 5.06998e+00 358 2010 9 2.14360e+01 6.42024e+00 174 2010 10 1.31249e+01 8.51050e+00 446 2010 11 1.34246e+01 4.59552e+00 225 2010 12 2.03614e+01 3.70379e+00 544 2011 1 2.20615e+01 2.70931e+00 531 2011 2 2.47143e+01 4.84386e+00 590 2011 3 2.56567e+01 4.16182e+00 708 2011 4 2.60848e+01 4.57066e+00 503 2011 5 2.78738e+01 4.92071e+00 227 2011 6 1.95728e+01 2.03481e+00 64 2011 7 3.02140e+01 6.25297e+00 70 2011 8 1.65389e+01 6.89719e+00 234 2011 9 1.91159e+01 5.48336e+00 304 2011 10 2.25920e+01 4.71552e+00 384 2011 11 2.54387e+01 4.20223e+00 516 2011 12 2.22113e+01 5.27570e+00 842 2012 1 2.26996e+01 5.43042e+00 1042 2012 2 2.55335e+01 4.10371e+00 636 2012 3 2.97082e+01 4.75558e+00 462 2012 4 2.40267e+01 5.25243e+00 421 2012 5 3.04511e+01 7.46279e+00 227 2012 6 2.63542e+01 4.62569e+00 164 2012 7 2.82765e+01 3.41137e+00 229 2012 8 1.82218e+01 1.66925e+00 49 2012 9 1.65558e+01 5.33941e+00 254 2012 10 2.14151e+01 3.61652e+00 333 2012 11 2.49935e+01 4.22949e+00 699 2012 12 1.95601e+01 3.90619e+00 729 2013 1 1.95570e+01 6.87398e+00 559 2013 2 2.45430e+01 4.59832e+00 560 2013 3 3.01901e+01 4.71343e+00 419 2013 4 2.86825e+01 3.88259e+00 232 2013 5 2.34666e+01 4.19434e+00 258 2013 6 nan nan 0 2013 7 2.45027e+01 3.67336e+00 248 2013 8 2.14856e+01 3.40777e+00 131 2013 9 1.94993e+01 3.39983e+00 265 2013 10 2.04670e+01 4.56285e+00 308 2013 11 1.99658e+01 6.43723e+00 681 2013 12 1.66505e+01 5.00420e+00 712 2014 1 2.00343e+01 4.29645e+00 1009 2014 2 2.49469e+01 3.45822e+00 738 2014 3 2.75876e+01 4.38781e+00 417 2014 4 2.60726e+01 4.25308e+00 535 2014 5 2.72539e+01 3.63347e+00 243 2014 6 2.68662e+01 2.44941e+00 148 2014 7 2.49133e+01 3.80454e+00 181 2014 8 3.05177e+01 3.12661e+00 42 2014 9 1.97498e+01 5.85208e+00 369 2014 10 2.23241e+01 3.64439e+00 395 2014 11 1.36522e+01 6.17976e+00 802 2014 12 1.55592e+01 4.99735e+00 954 2015 1 1.92283e+01 6.54284e+00 816 2015 2 2.64366e+01 2.92968e+00 584 2015 3 2.38603e+01 5.04266e+00 592 2015 4 2.74090e+01 4.30054e+00 381 2015 5 nan nan 0 2015 6 2.35921e+01 1.49891e+00 32 2015 7 2.52619e+01 3.83949e+00 177 2015 8 2.41498e+01 4.14025e+00 230 2015 9 2.33225e+01 7.56572e+00 563 2015 10 2.20423e+01 5.49075e+00 446 2015 11 2.24984e+01 5.53297e+00 411 2015 12 1.88376e+01 6.29091e+00 849 2016 1 2.37755e+01 4.11982e+00 709 2016 2 2.67739e+01 4.52254e+00 498 2016 3 2.66435e+01 4.43928e+00 189 2016 4 2.95495e+01 4.05769e+00 393 2016 5 2.39145e+01 3.74127e+00 268 2016 6 2.38752e+01 2.44548e+00 128 2016 7 2.14664e+01 3.79196e+00 128 2016 8 2.65332e+01 7.16473e+00 190 2016 9 2.73633e+01 5.01815e+00 494 2016 10 1.39221e+01 5.09508e+00 512 2016 11 2.12674e+01 4.96413e+00 424 2016 12 1.83792e+01 5.22059e+00 813 2017 1 2.44490e+01 4.23530e+00 864 2017 2 2.54954e+01 4.12006e+00 656 2017 3 2.41785e+01 4.61220e+00 326 2017 4 2.91039e+01 5.58645e+00 580 2017 5 2.81210e+01 7.49272e+00 417 2017 6 2.27801e+01 5.14434e+00 384 2017 7 2.09558e+01 3.50640e+00 197 2017 8 1.35581e+01 2.49377e+00 128 2017 9 1.91033e+01 3.33202e+00 51 2017 10 9.30386e+00 6.79961e+00 159 2017 11 1.40638e+01 4.60389e+00 704 2017 12 2.09152e+01 4.23396e+00 732 2018 1 2.50194e+01 4.48166e+00 896 2018 2 2.67477e+01 3.04057e+00 265 2018 3 2.86357e+01 5.93083e+00 577 2018 4 2.53253e+01 5.03814e+00 453 2018 5 2.86065e+01 4.74609e+00 273 2018 6 2.22571e+01 3.23218e+00 302 2018 7 2.35337e+01 2.20088e+00 42 2018 8 2.71826e+01 3.90133e+00 395 2018 9 2.04937e+01 3.68634e+00 380 2018 10 2.25548e+01 7.87316e+00 343 2018 11 1.54886e+01 4.84846e+00 885 2018 12 2.02615e+01 5.05498e+00 1050 2019 1 2.20034e+01 3.83044e+00 792 2019 2 2.58705e+01 3.57762e+00 492 2019 3 2.80496e+01 3.87417e+00 463 2019 4 2.57368e+01 4.53821e+00 378 2019 5 2.44940e+01 1.62113e+00 64 2019 6 2.52644e+01 4.19053e+00 320 2019 7 2.50985e+01 4.71084e+00 476 2019 8 2.70937e+01 3.92895e+00 256 2019 9 2.59111e+01 6.70317e+00 159 2019 10 2.09098e+01 4.85585e+00 422 2019 11 2.07936e+01 5.24058e+00 916 2019 12 1.69949e+01 6.64252e+00 875 2020 1 1.94730e+01 1.07607e+01 799 2020 2 2.43696e+01 6.03289e+00 614 2020 3 2.91778e+01 4.57174e+00 384 2020 4 2.87874e+01 3.89397e+00 728 2020 5 2.44550e+01 4.63090e+00 406 2020 6 2.71837e+01 3.48760e+00 300 2020 7 3.08423e+01 3.99768e+00 167 2020 8 1.64627e+01 3.57899e+00 128 2020 9 2.43118e+01 5.28098e+00 180 2020 10 1.95138e+01 4.17782e+00 398 2020 11 1.84753e+01 3.87098e+00 445 2020 12 2.10598e+01 4.67896e+00 912 2021 1 2.16926e+01 3.62331e+00 900 2021 2 2.38504e+01 4.75048e+00 630 2021 3 2.83193e+01 4.11564e+00 480 2021 4 2.95199e+01 5.30882e+00 258 2021 5 2.78614e+01 5.18745e+00 440 2021 6 2.38296e+01 6.96056e+00 124 2021 7 1.32287e+01 4.04227e+00 114 2021 8 2.44527e+01 5.38688e+00 256 2021 9 2.41379e+01 4.02546e+00 374 2021 10 1.81204e+01 5.66212e+00 380 2021 11 1.52945e+01 4.53562e+00 681 2021 12 1.68671e+01 6.12790e+00 892 2022 1 2.42512e+01 5.27482e+00 949 2022 2 2.91851e+01 4.58499e+00 660 2022 3 2.73558e+01 5.75985e+00 308 2022 4 3.16949e+01 5.92486e+00 128 2022 5 2.91638e+01 4.68269e+00 320 2022 6 3.04050e+01 5.74434e+00 516 2022 7 2.84871e+01 3.17618e+00 64 2022 8 2.66438e+01 4.21227e+00 175 2022 9 3.43336e+01 2.65164e+00 38 2022 10 1.42917e+01 2.93378e+00 214 2022 11 1.70057e+01 3.94447e+00 526 2022 12 2.32915e+01 7.27716e+00 950 2023 1 2.75841e+01 6.07936e+00 1054 2023 2 2.52099e+01 7.47612e+00 698 2023 3 2.44943e+01 7.07809e+00 537 2023 4 3.22584e+01 3.97775e+00 397 2023 5 2.89279e+01 4.35828e+00 331 2023 6 2.75489e+01 4.37971e+00 192 2023 7 2.82603e+01 3.34808e+00 64 2023 8 2.62801e+01 6.02542e+00 299 2023 9 2.20228e+01 7.08758e+00 485 2023 10 2.38432e+01 4.36290e+00 366 2023 11 1.78920e+01 8.57831e+00 638 2023 12 2.13636e+01 4.71574e+00 847 2024 1 1.85729e+01 4.90923e+00 897 2024 2 2.59794e+01 3.48938e+00 601 2024 3 2.97274e+01 5.40229e+00 556 2024 4 3.30804e+01 2.57880e+00 64