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 2.77935e+01 5.90548e+00 14 2002 8 3.10982e+01 1.75085e+01 168 2002 9 4.58691e+01 1.13638e+01 123 2002 10 4.49010e+01 1.58081e+01 321 2002 11 3.06535e+01 1.31803e+01 540 2002 12 2.59803e+01 1.19512e+01 291 2003 1 2.59008e+01 5.80148e+00 545 2003 2 3.28472e+01 1.21498e+01 452 2003 3 4.32751e+01 2.57790e+01 10 2003 4 5.21507e+00 7.32775e+00 26 2003 5 nan nan 0 2003 6 3.33985e+01 0.00000e+00 1 2003 7 2.41729e+01 8.06960e+00 14 2003 8 4.06875e+01 2.86032e+01 15 2003 9 3.95950e+01 2.17839e+01 133 2003 10 3.53295e+01 1.42186e+01 327 2003 11 3.64338e+01 1.91750e+01 557 2003 12 2.09713e+01 1.18183e+01 628 2004 1 3.75668e+01 1.09134e+01 386 2004 2 3.18450e+01 1.13447e+01 210 2004 3 2.84854e+01 1.50604e+01 278 2004 4 7.72827e+00 1.17017e+01 76 2004 5 5.91029e+01 1.01271e+01 56 2004 6 4.13665e+01 2.28802e+01 130 2004 7 3.43014e+01 2.54402e+01 142 2004 8 4.63367e+01 1.19125e+01 61 2004 9 5.58427e+01 5.11222e+00 13 2004 10 2.78384e+01 1.65347e+01 110 2004 11 2.16452e+01 1.84237e+01 256 2004 12 1.71049e+01 9.71875e+00 295 2005 1 2.70887e+01 1.12591e+01 290 2005 2 2.23109e+01 1.41031e+01 288 2005 3 3.15096e+01 1.02371e+01 320 2005 4 1.95746e+01 4.85982e+00 117 2005 5 0.00000e+00 0.00000e+00 4 2005 6 1.54989e+01 1.06981e+01 150 2005 7 3.06129e+01 1.74725e+01 72 2005 8 nan nan 0 2005 9 4.32642e+01 1.93881e+01 155 2005 10 3.30182e+01 1.36981e+01 354 2005 11 3.22554e+01 9.73019e+00 455 2005 12 2.83460e+01 8.71202e+00 339 2006 1 2.61309e+01 9.13267e+00 411 2006 2 1.53555e+01 9.25813e+00 361 2006 3 2.47231e+01 9.40372e+00 653 2006 4 2.96350e+01 2.34050e+00 64 2006 5 2.58451e+01 7.38138e+00 24 2006 6 4.64495e+01 5.48135e+00 36 2006 7 4.34051e+01 6.28905e-01 12 2006 8 3.22452e+00 1.11701e+01 13 2006 9 3.47273e+01 2.57771e+01 238 2006 10 3.32271e+01 1.73985e+01 365 2006 11 3.24834e+01 1.30977e+01 461 2006 12 3.95935e+01 1.76748e+01 397 2007 1 4.49023e+01 9.44613e+00 276 2007 2 4.28729e+01 7.16628e+00 622 2007 3 4.13734e+01 1.41653e+01 468 2007 4 3.79955e+01 1.21009e+01 239 2007 5 3.58884e+01 8.18778e+00 21 2007 6 5.17487e+01 3.80537e+00 87 2007 7 3.99382e+01 6.44762e+00 50 2007 8 4.14812e+01 1.10935e+01 28 2007 9 2.82774e+01 1.47725e+01 54 2007 10 4.46639e+01 2.13522e+01 345 2007 11 4.60548e+01 1.06953e+01 548 2007 12 4.76500e+01 1.65848e+01 331 2008 1 4.02158e+01 1.26433e+01 307 2008 2 4.60929e+01 1.10007e+01 755 2008 3 4.26287e+01 1.14457e+01 413 2008 4 4.64204e+01 8.35182e+00 316 2008 5 4.33645e+01 1.07330e+01 142 2008 6 3.93694e+01 1.30155e+01 30 2008 7 2.38920e+01 0.00000e+00 1 2008 8 3.93457e+01 1.62400e+01 56 2008 9 2.92551e+01 1.26384e+01 77 2008 10 3.20886e+01 1.35366e+01 382 2008 11 3.07056e+01 1.12958e+01 387 2008 12 3.97224e+01 1.25648e+01 512 2009 1 3.42863e+01 1.31439e+01 396 2009 2 3.45172e+01 1.10378e+01 544 2009 3 3.52199e+01 1.54716e+01 418 2009 4 3.86774e+01 9.33246e+00 192 2009 5 3.07852e+01 1.57076e+01 83 2009 6 3.84021e+01 2.94607e+01 9 2009 7 4.50277e+01 1.81297e+01 48 2009 8 1.70141e+01 1.50490e+01 67 2009 9 3.42133e+01 1.69418e+01 81 2009 10 3.30883e+01 1.59523e+01 350 2009 11 3.49514e+01 2.03225e+01 278 2009 12 4.36529e+01 5.89322e+00 163 2010 1 2.33554e+01 1.02623e+01 498 2010 2 2.15842e+01 1.48773e+01 128 2010 3 4.06676e+00 4.33972e+00 80 2010 4 1.26121e+01 6.49388e+00 134 2010 5 1.94039e+01 1.77731e+01 139 2010 6 2.80749e+01 1.02599e+01 65 2010 7 2.50043e+01 1.49770e+01 58 2010 8 nan nan 0 2010 9 3.08141e+01 2.63612e+01 84 2010 10 3.12655e+01 1.42759e+01 440 2010 11 3.38472e+01 1.38779e+01 642 2010 12 3.38117e+01 1.37552e+01 484 2011 1 3.74810e+01 1.10972e+01 427 2011 2 3.69609e+01 1.01764e+01 301 2011 3 3.60420e+01 1.19278e+01 553 2011 4 4.07336e+01 1.10239e+01 329 2011 5 2.88351e+01 1.29826e+01 62 2011 6 4.28072e+01 2.96326e+00 16 2011 7 4.24631e+01 6.63066e+00 34 2011 8 2.80665e+01 9.74430e+00 21 2011 9 2.38535e+01 1.81905e+01 171 2011 10 4.22101e+01 1.54902e+01 450 2011 11 4.79896e+01 1.04669e+01 462 2011 12 4.73838e+01 1.01068e+01 557 2012 1 4.02288e+01 8.20767e+00 636 2012 2 4.24588e+01 8.72305e+00 182 2012 3 4.74862e+01 1.44459e+01 581 2012 4 3.30838e+01 1.46253e+01 203 2012 5 5.98035e+01 6.39543e+00 126 2012 6 2.58707e+01 1.73814e+01 32 2012 7 3.45654e+01 6.59823e+00 33 2012 8 nan nan 0 2012 9 6.37690e+00 5.70151e+00 52 2012 10 1.86830e+01 1.30934e+01 213 2012 11 1.13215e+01 1.23214e+01 371 2012 12 2.90065e+01 9.49425e+00 170 2013 1 4.27065e+01 1.71049e+01 377 2013 2 3.24707e+01 1.21233e+01 323 2013 3 2.68504e+01 8.80134e+00 326 2013 4 3.99100e+01 1.91474e+01 160 2013 5 1.90276e+01 1.74152e+01 96 2013 6 3.90021e+01 3.67802e+01 64 2013 7 nan nan 0 2013 8 nan nan 0 2013 9 2.27870e+01 1.31230e+01 45 2013 10 2.68297e+01 1.75126e+01 229 2013 11 3.67381e+01 1.71942e+01 184 2013 12 4.34661e+01 1.33183e+01 521 2014 1 3.99168e+01 9.76869e+00 329 2014 2 3.57399e+01 1.08550e+01 468 2014 3 2.97480e+01 9.38682e+00 441 2014 4 2.17369e+01 1.54839e+01 82 2014 5 nan nan 0 2014 6 3.91783e+01 1.08185e+01 46 2014 7 2.54320e+01 1.36518e+01 62 2014 8 9.28119e+00 1.28646e+01 19 2014 9 5.35163e+01 2.58743e+01 85 2014 10 2.89424e+01 1.65348e+01 660 2014 11 3.43213e+01 1.01533e+01 587 2014 12 4.14330e+01 1.08509e+01 385 2015 1 4.14052e+01 1.87211e+01 480 2015 2 2.81516e+01 1.29770e+01 450 2015 3 3.84218e+01 7.12340e+00 241 2015 4 2.54641e+01 1.24483e+01 78 2015 5 5.31416e+01 1.61818e+01 104 2015 6 4.08097e+01 2.02061e+01 145 2015 7 nan nan 0 2015 8 2.12418e+01 2.24076e+01 69 2015 9 3.57742e+01 4.00278e-01 15 2015 10 2.77264e+01 1.47043e+01 167 2015 11 3.81519e+01 1.50299e+01 149 2015 12 3.75883e+01 1.24485e+01 389 2016 1 4.24237e+01 1.07909e+01 570 2016 2 2.76551e+01 1.30893e+01 629 2016 3 3.44240e+01 1.30741e+01 480 2016 4 3.94726e+01 1.30693e+01 246 2016 5 4.52603e+01 9.29060e+00 94 2016 6 3.93776e+01 1.86760e+01 117 2016 7 2.31622e+01 1.21460e+01 83 2016 8 2.55742e+01 1.45950e+01 139 2016 9 3.40466e+01 2.61009e+01 148 2016 10 2.91122e+01 2.19208e+01 181 2016 11 3.83062e+01 1.23720e+01 476 2016 12 3.96732e+01 6.59398e+00 258 2017 1 4.35902e+01 1.06125e+01 468 2017 2 4.06451e+01 1.19895e+01 730 2017 3 4.54170e+01 1.16346e+01 657 2017 4 4.18401e+01 1.57372e+01 306 2017 5 3.45572e+01 1.50421e+01 56 2017 6 8.60642e+01 2.12842e+00 64 2017 7 6.88978e+01 3.56017e+00 36 2017 8 1.53323e+01 9.52625e+00 40 2017 9 2.19995e+01 1.26838e+01 137 2017 10 3.03762e+01 1.62969e+01 283 2017 11 3.84712e+01 1.01948e+01 505 2017 12 4.14298e+01 1.37482e+01 400 2018 1 3.81336e+01 1.13612e+01 500 2018 2 4.40669e+01 5.44256e+00 357 2018 3 3.60378e+01 1.52951e+01 453 2018 4 1.94533e+01 7.13877e+00 71 2018 5 3.90572e+01 1.29612e+01 206 2018 6 4.12218e+01 3.11094e+00 55 2018 7 4.55165e+01 1.13301e+01 38 2018 8 3.39915e+01 2.36367e+01 75 2018 9 3.89025e+01 3.10161e+01 109 2018 10 2.27425e+01 1.25714e+01 270 2018 11 2.92329e+01 8.68349e+00 197 2018 12 2.49681e+01 1.15310e+01 321 2019 1 1.62051e+01 6.63625e+00 192 2019 2 3.16228e+01 2.87109e+01 91 2019 3 1.79183e+01 6.66145e+00 209 2019 4 4.17367e+01 6.92746e+00 232 2019 5 2.51762e+01 1.74268e+01 58 2019 6 1.69456e+01 1.19823e+01 6 2019 7 2.64277e+01 1.76854e+01 41 2019 8 5.88800e+00 8.14623e+00 68 2019 9 3.49346e+01 1.16185e+01 75 2019 10 2.90290e+01 1.77233e+01 261 2019 11 5.00756e+01 1.69486e+01 358 2019 12 4.23797e+01 9.78664e+00 215 2020 1 4.13894e+01 8.67408e+00 267 2020 2 4.43226e+01 9.08616e+00 271 2020 3 4.59975e+01 1.28427e+01 440 2020 4 3.23560e+01 1.36563e+01 131 2020 5 2.56043e+01 1.44788e+01 157 2020 6 3.95745e+01 5.69304e+00 81 2020 7 1.44353e+01 2.10986e+01 88 2020 8 2.37699e+01 1.13073e+01 67 2020 9 1.54507e+01 1.00431e+01 55 2020 10 3.82221e+01 3.39636e+01 134 2020 11 2.45720e+01 1.42804e+01 336 2020 12 2.82131e+01 1.29277e+01 335 2021 1 2.53640e+01 1.26061e+01 321 2021 2 2.61912e+01 1.57769e+01 397 2021 3 2.77543e+01 8.94166e+00 326 2021 4 3.53988e+01 7.58125e+00 183 2021 5 3.02787e+01 1.52316e+01 279 2021 6 4.36632e+01 1.30776e+01 88 2021 7 nan nan 0 2021 8 nan nan 0 2021 9 3.27847e+01 1.90578e+01 153 2021 10 2.44527e+01 1.37759e+01 195 2021 11 1.48285e+01 9.67558e+00 305 2021 12 3.76450e+01 1.32401e+01 371 2022 1 2.63890e+01 1.09034e+01 507 2022 2 3.71036e+01 1.04395e+01 344 2022 3 3.31043e+01 1.32244e+01 434 2022 4 2.87505e+01 8.84766e+00 62 2022 5 1.34389e+01 1.24416e+01 69 2022 6 4.37553e+01 9.42134e+00 86 2022 7 5.70478e+01 2.50570e+01 92 2022 8 4.83319e+01 2.96232e+01 129 2022 9 4.56338e+01 1.37807e+01 111 2022 10 2.47102e+01 1.37066e+01 703 2022 11 4.26900e+01 1.39056e+01 404 2022 12 4.04549e+01 1.69531e+01 750 2023 1 4.43502e+01 1.05807e+01 785 2023 2 4.46739e+01 6.43020e+00 494 2023 3 4.39747e+01 1.01351e+01 626 2023 4 4.08655e+01 2.26825e+01 148 2023 5 4.66974e+01 1.64799e+01 190 2023 6 4.91813e+01 1.33414e+01 124 2023 7 2.25748e+01 2.11460e+01 36 2023 8 4.17175e+01 2.42870e+01 95 2023 9 4.03454e+01 3.19388e+01 181 2023 10 4.24218e+01 1.36965e+01 327 2023 11 3.70035e+01 1.94996e+01 457 2023 12 2.58968e+01 6.20410e+00 147 2024 1 1.15850e+01 7.54572e+00 293 2024 2 2.71025e+01 7.11505e+00 392 2024 3 2.01531e+01 9.33486e+00 125 2024 4 nan nan 0