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 5.92361e-01 7.85253e-01 32 2002 8 1.51366e+00 1.13380e+00 78 2002 9 4.37738e+00 2.29540e+00 127 2002 10 4.05352e+00 2.22388e+00 144 2002 11 5.02759e+00 2.31662e+00 175 2002 12 3.91154e+00 7.94054e-01 144 2003 1 6.48707e+00 2.14251e+00 232 2003 2 3.58479e+00 7.84389e-01 128 2003 3 1.49157e+01 1.61426e-01 4 2003 4 3.32727e+00 1.64425e+00 53 2003 5 2.54388e+00 1.33702e-01 32 2003 6 3.13043e+00 1.09546e+00 64 2003 7 3.16606e+00 2.14111e-01 22 2003 8 6.09739e+00 3.68000e-01 30 2003 9 4.68855e+00 1.38747e+00 106 2003 10 2.23370e+00 1.28740e+00 195 2003 11 3.69790e+00 8.39793e-01 274 2003 12 3.31624e+00 9.78178e-01 178 2004 1 2.22321e+00 1.01325e+00 112 2004 2 4.65029e+00 9.81443e-01 48 2004 3 4.01783e+00 1.21890e+00 144 2004 4 1.84386e+00 7.44884e-01 155 2004 5 1.82971e+00 9.20240e-01 139 2004 6 1.72367e+00 1.35298e+00 71 2004 7 2.75416e+00 9.66283e-01 19 2004 8 2.35044e+00 1.20547e+00 48 2004 9 4.30490e+00 1.33501e+00 117 2004 10 6.45762e+00 7.55092e-01 56 2004 11 5.31729e+00 1.06393e+00 128 2004 12 5.73939e+00 9.57707e-01 106 2005 1 4.38117e+00 1.12988e+00 207 2005 2 3.17292e+00 1.08848e+00 107 2005 3 5.46156e+00 1.41300e+00 128 2005 4 9.21322e+00 2.81367e+00 70 2005 5 3.72113e+00 2.23949e+00 47 2005 6 2.82758e+00 1.56174e+00 80 2005 7 4.66035e+00 1.82795e+00 65 2005 8 nan nan 0 2005 9 3.66343e+00 1.60875e+00 96 2005 10 3.15030e+00 8.74508e-01 265 2005 11 2.89884e+00 7.14049e-01 272 2005 12 3.16586e+00 7.55400e-01 208 2006 1 4.82797e+00 1.97815e+00 137 2006 2 5.08257e+00 1.42322e+00 160 2006 3 4.22181e+00 9.56952e-01 196 2006 4 1.56375e+00 9.80231e-01 156 2006 5 1.39522e+00 5.04449e-01 173 2006 6 1.42839e+00 6.73969e-01 101 2006 7 8.41049e-01 6.05362e-01 111 2006 8 1.56319e+00 3.69204e-01 80 2006 9 2.48028e+00 3.83289e-01 146 2006 10 2.41044e+00 8.58857e-01 231 2006 11 2.51628e+00 1.22051e+00 213 2006 12 2.37300e+00 7.70181e-01 160 2007 1 4.63149e+00 1.78493e+00 64 2007 2 5.51919e+00 1.80928e+00 144 2007 3 2.34906e+00 1.57506e+00 284 2007 4 1.91959e+00 1.23115e+00 165 2007 5 1.31969e+00 5.07002e-01 92 2007 6 1.14884e+00 4.91123e-01 64 2007 7 1.31436e+00 4.23709e-01 95 2007 8 2.05987e+00 3.02912e-01 96 2007 9 2.44371e+00 8.77775e-01 176 2007 10 2.20824e+00 5.49594e-01 124 2007 11 1.40135e+00 6.50777e-01 256 2007 12 1.25112e+00 6.91186e-01 144 2008 1 1.63781e+00 9.53658e-01 176 2008 2 2.14715e+00 1.91814e+00 237 2008 3 6.57535e+00 1.90685e+00 176 2008 4 2.98179e+00 7.11115e-01 129 2008 5 2.36023e+00 6.42455e-01 160 2008 6 1.81106e+00 4.99186e-01 98 2008 7 1.87644e+00 9.27856e-02 14 2008 8 1.84864e+00 8.63013e-02 16 2008 9 7.60266e+00 1.05040e+00 116 2008 10 3.91204e+00 6.82269e-01 245 2008 11 3.35094e+00 1.26615e+00 226 2008 12 5.37837e+00 2.06564e+00 164 2009 1 4.03606e+00 1.05226e+00 174 2009 2 2.67463e+00 1.04148e+00 221 2009 3 2.36083e+00 1.30396e+00 160 2009 4 7.34513e+00 2.02930e+00 70 2009 5 4.15066e+00 8.38550e-01 64 2009 6 2.97648e+00 3.55266e-01 32 2009 7 1.89701e+00 4.10940e-01 80 2009 8 2.20162e+00 6.95663e-01 96 2009 9 3.05671e+00 1.34421e+00 191 2009 10 3.41802e+00 1.27738e+00 163 2009 11 3.10224e+00 8.15139e-01 160 2009 12 9.21759e+00 2.24271e+00 6 2010 1 8.25417e+00 1.54536e+00 138 2010 2 8.64740e+00 2.03433e+00 130 2010 3 6.54089e+00 2.31603e+00 128 2010 4 4.51198e+00 7.96792e-01 188 2010 5 3.21370e+00 1.64558e+00 70 2010 6 2.24386e+00 6.50980e-01 144 2010 7 1.67545e+00 1.25855e+00 92 2010 8 1.56693e+00 4.07043e-01 32 2010 9 2.43585e+00 7.49739e-01 199 2010 10 2.06319e+00 6.36316e-01 297 2010 11 1.68156e+00 8.98622e-01 240 2010 12 2.35202e+00 1.10475e+00 260 2011 1 2.08654e+00 5.26883e-01 176 2011 2 2.72481e+00 4.97394e-01 135 2011 3 2.43443e+00 8.69729e-01 167 2011 4 1.94516e+00 8.64703e-01 153 2011 5 1.92279e+00 7.91091e-01 144 2011 6 2.17291e+00 6.03797e-01 110 2011 7 1.93879e+00 4.80372e-01 93 2011 8 1.62266e+00 3.10529e-01 122 2011 9 1.94376e+00 5.08319e-01 176 2011 10 2.53030e+00 8.97979e-01 288 2011 11 2.32947e+00 6.80989e-01 190 2011 12 1.41044e+00 7.76663e-01 240 2012 1 1.88428e+00 5.60150e-01 241 2012 2 2.46963e+00 7.48573e-01 64 2012 3 2.19252e+00 6.20449e-01 192 2012 4 1.40115e+00 4.66785e-01 256 2012 5 1.46901e+00 2.41184e-01 112 2012 6 2.76805e+00 7.36576e-02 16 2012 7 3.81425e+00 9.31758e-01 80 2012 8 3.96529e+00 1.15743e-01 10 2012 9 5.85199e+00 1.11010e+00 54 2012 10 6.01789e+00 1.11848e+00 176 2012 11 2.63972e+00 1.03979e+00 224 2012 12 2.40054e+00 1.13438e+00 152 2013 1 1.64408e+00 1.12419e+00 128 2013 2 2.74364e+00 1.02317e+00 117 2013 3 9.95256e+00 2.04806e+00 187 2013 4 6.66427e+00 5.28301e-01 30 2013 5 2.23696e+00 1.08268e+00 64 2013 6 2.77988e+00 1.42565e+00 88 2013 7 nan nan 0 2013 8 6.17459e+00 4.55651e-02 3 2013 9 6.26924e+00 9.34925e-01 176 2013 10 4.34616e+00 1.34788e+00 160 2013 11 3.30313e+00 9.25939e-01 127 2013 12 2.40501e+00 4.94791e-01 104 2014 1 8.18634e+00 1.93961e+00 51 2014 2 5.12668e+00 5.39579e-01 104 2014 3 5.72810e+00 1.37461e+00 80 2014 4 1.00734e+01 2.52143e+00 23 2014 5 nan nan 0 2014 6 1.58612e+00 1.25116e+00 47 2014 7 2.92016e-01 6.81520e-01 61 2014 8 1.26079e+00 4.75964e-01 112 2014 9 1.19576e+00 8.44726e-01 141 2014 10 1.60292e+00 9.42572e-01 318 2014 11 2.67785e+00 8.72141e-01 208 2014 12 3.00685e+00 1.36056e+00 187 2015 1 5.18512e+00 1.31566e+00 146 2015 2 6.90709e+00 1.43003e+00 96 2015 3 4.32037e+00 2.12029e+00 84 2015 4 2.94172e+00 1.34894e+00 40 2015 5 2.16998e+00 1.26281e+00 136 2015 6 1.83432e+00 8.40457e-01 111 2015 7 1.44816e+00 6.12961e-01 60 2015 8 1.47993e+00 4.15613e-01 94 2015 9 1.90734e+00 1.17122e+00 128 2015 10 2.90116e+00 6.86383e-01 208 2015 11 3.05754e+00 1.33694e+00 125 2015 12 1.93152e+00 7.89833e-01 80 2016 1 5.70505e+00 2.46268e+00 133 2016 2 7.45991e+00 2.09875e+00 270 2016 3 4.49965e+00 1.13177e+00 224 2016 4 1.61628e+01 3.43630e+00 17 2016 5 1.21504e+00 1.21824e+00 64 2016 6 1.33013e+00 1.44619e+00 123 2016 7 2.01617e+00 7.11097e-01 153 2016 8 5.54358e+00 2.03791e+00 114 2016 9 3.42333e+00 1.11943e+00 78 2016 10 3.45576e+00 1.12934e+00 240 2016 11 1.81984e+00 8.54422e-01 172 2016 12 8.20723e-01 6.29275e-01 161 2017 1 3.59027e+00 2.68019e+00 144 2017 2 5.16622e+00 7.30751e-01 199 2017 3 3.10042e+00 1.38465e+00 196 2017 4 2.49950e+00 1.33861e+00 152 2017 5 2.25490e+00 7.04299e-01 112 2017 6 9.83018e-01 1.60257e+00 24 2017 7 3.73732e+00 1.08087e-01 32 2017 8 3.39222e+00 9.61048e-01 63 2017 9 3.77574e+00 9.63950e-01 172 2017 10 3.22608e+00 7.04781e-01 197 2017 11 1.88226e+00 5.61464e-01 288 2017 12 1.46382e+00 5.01977e-01 176 2018 1 1.85020e+00 9.70563e-01 236 2018 2 1.67393e+00 4.29270e-01 96 2018 3 2.51769e+00 7.31335e-01 160 2018 4 2.55105e+00 6.12159e-01 118 2018 5 1.70831e+00 1.29890e+00 83 2018 6 3.44987e+00 9.64691e-01 41 2018 7 1.55259e+00 8.14490e-01 80 2018 8 6.49747e+00 1.15873e+00 48 2018 9 5.31627e+00 1.09271e+00 157 2018 10 5.56329e+00 1.17233e+00 321 2018 11 4.91259e+00 1.74496e+00 80 2018 12 7.17095e+00 2.25979e+00 58 2019 1 8.95448e+00 2.00197e+00 88 2019 2 5.86453e+00 9.50762e-01 26 2019 3 6.20168e+00 1.40541e+00 121 2019 4 3.96025e+00 7.82907e-01 80 2019 5 1.87313e+00 9.04251e-01 175 2019 6 1.16458e+00 7.55170e-01 48 2019 7 1.14603e+00 7.62115e-01 85 2019 8 1.59068e+00 1.52122e+00 160 2019 9 1.87502e+00 1.37528e+00 232 2019 10 2.55910e+00 5.92732e-01 144 2019 11 1.50974e+00 1.06313e+00 156 2019 12 1.57415e+00 5.18887e-01 96 2020 1 1.89340e+00 1.03158e+00 152 2020 2 2.38493e+00 7.42162e-01 144 2020 3 2.37162e+00 7.62419e-01 92 2020 4 1.89453e+00 5.30324e-01 80 2020 5 1.75144e+00 3.07308e-01 121 2020 6 4.44919e+00 4.84127e-01 37 2020 7 1.43937e+00 1.06862e+00 48 2020 8 1.60581e+00 3.73845e-01 78 2020 9 5.93980e+00 4.26881e+00 48 2020 10 5.21623e+00 1.57702e+00 175 2020 11 4.00264e+00 1.32630e+00 229 2020 12 3.17024e+00 9.00723e-01 138 2021 1 5.73434e+00 2.28730e+00 64 2021 2 7.62542e+00 2.22991e+00 110 2021 3 5.38136e+00 1.15228e+00 112 2021 4 3.58821e+00 6.21898e-01 105 2021 5 2.40984e+00 6.64665e-01 141 2021 6 1.60128e+00 5.59097e-01 32 2021 7 2.08876e+00 6.53116e-01 32 2021 8 5.63667e+00 1.87628e+00 112 2021 9 5.71667e+00 1.30730e+00 68 2021 10 5.86861e+00 6.80718e-01 68 2021 11 4.57179e+00 1.15168e+00 219 2021 12 2.97598e+00 5.13002e-01 84 2022 1 4.52562e+00 2.25744e+00 149 2022 2 3.44450e+00 9.75898e-01 160 2022 3 4.72008e+00 2.04714e+00 182 2022 4 6.70666e+00 1.57891e-01 48 2022 5 2.69921e+00 5.47325e-01 96 2022 6 1.04695e+00 1.22105e+00 128 2022 7 2.05154e-01 7.87369e-01 49 2022 8 2.05454e+00 6.31283e-01 51 2022 9 3.80703e+00 7.83293e-01 130 2022 10 2.74545e+00 8.32966e-01 295 2022 11 1.85829e+00 8.94090e-01 124 2022 12 1.86044e+00 1.11194e+00 224 2023 1 2.34901e+00 8.74438e-01 208 2023 2 4.52719e+00 1.34602e+00 160 2023 3 3.82108e+00 6.15925e-01 160 2023 4 1.89479e+00 5.12257e-01 96 2023 5 1.80000e+00 1.15780e+00 96 2023 6 2.81851e+00 1.45394e+00 112 2023 7 2.26506e+00 9.73918e-01 56 2023 8 1.14720e+00 1.39151e+00 133 2023 9 3.95385e+00 1.20005e+00 106 2023 10 3.50401e+00 9.07696e-01 258 2023 11 2.34242e+00 1.44504e+00 169 2023 12 6.20110e+00 5.94098e-02 16 2024 1 6.64656e+00 9.64437e-02 16 2024 2 5.45272e+00 9.98587e-01 112 2024 3 4.57414e+00 8.26677e-01 98 2024 4 nan nan 0