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 2.27975e+01 3.50897e+00 3 2002 8 1.15404e+01 5.56190e+00 51 2002 9 5.60784e+00 1.60656e+00 72 2002 10 1.76065e+00 1.51799e+00 96 2002 11 2.03334e+00 3.69768e+00 137 2002 12 5.36127e+00 3.75240e+00 156 2003 1 7.28872e+00 7.48206e+00 207 2003 2 1.73395e+01 4.72646e+00 104 2003 3 6.76815e+00 8.20998e+00 27 2003 4 6.63406e+00 7.59012e+00 98 2003 5 1.14653e-02 8.28356e-03 12 2003 6 1.39927e+01 4.06460e+00 40 2003 7 2.92251e+01 2.42540e+01 16 2003 8 1.90113e-22 2.69940e-22 6 2003 9 5.87082e-01 4.79255e-01 56 2003 10 8.25369e+00 6.75910e+00 138 2003 11 3.67132e+00 3.53341e+00 190 2003 12 7.54170e+00 5.33292e+00 158 2004 1 1.86962e+01 1.04934e+01 138 2004 2 2.07074e+00 1.48952e+00 48 2004 3 7.95240e+00 6.06197e+00 135 2004 4 2.22523e+01 5.51033e+00 87 2004 5 3.06445e+01 7.87817e+00 75 2004 6 2.73273e+01 6.75222e+00 32 2004 7 2.15620e+01 2.77877e+00 14 2004 8 6.44153e+00 4.81014e+00 49 2004 9 6.42007e+00 6.38266e+00 71 2004 10 4.63849e+00 3.24920e+00 96 2004 11 1.17031e+00 1.10484e+00 100 2004 12 2.00484e+00 3.17383e+00 65 2005 1 7.10312e+00 5.98128e+00 101 2005 2 1.03212e+01 5.63308e+00 112 2005 3 3.36744e+00 4.13914e+00 136 2005 4 2.85322e-01 4.97927e-01 69 2005 5 9.03347e+00 8.27491e+00 48 2005 6 2.20974e+01 1.99532e+00 32 2005 7 3.76611e+00 2.22741e+00 59 2005 8 3.19979e+00 1.35836e+00 25 2005 9 6.27589e+00 1.08216e+00 15 2005 10 1.61169e+01 8.74290e+00 196 2005 11 1.75131e+01 6.86882e+00 172 2005 12 9.01477e+00 8.29377e+00 131 2006 1 9.56139e+00 4.82696e+00 94 2006 2 6.97580e+00 5.98627e+00 125 2006 3 1.47227e+01 9.28212e+00 200 2006 4 2.10078e+01 6.85733e+00 105 2006 5 2.11472e+01 5.10090e+00 93 2006 6 2.38396e+01 2.63370e+00 37 2006 7 1.43998e+01 5.87672e+00 32 2006 8 2.37885e+01 9.68152e+00 64 2006 9 9.78495e+00 9.53848e+00 79 2006 10 1.42070e+01 4.90151e+00 187 2006 11 1.81945e+01 6.88478e+00 191 2006 12 9.70502e+00 5.62694e+00 85 2007 1 4.57701e-01 4.19082e-01 32 2007 2 4.44537e+00 4.71469e+00 163 2007 3 1.99339e+01 8.01978e+00 181 2007 4 2.28438e+01 1.04673e+01 161 2007 5 2.33429e+01 7.63466e+00 50 2007 6 2.40908e+01 7.55938e+00 47 2007 7 2.98714e+01 7.11584e+00 67 2007 8 2.41331e+01 6.44055e+00 52 2007 9 1.20194e+01 3.34613e+00 64 2007 10 1.38897e+01 4.82119e+00 92 2007 11 1.63640e+01 6.67488e+00 196 2007 12 1.46263e+01 6.01855e+00 121 2008 1 8.96140e+00 4.94583e+00 173 2008 2 1.28041e+01 6.57233e+00 170 2008 3 3.01884e+00 4.00010e+00 153 2008 4 1.60240e+01 7.64967e+00 96 2008 5 2.35501e+01 6.19629e+00 117 2008 6 2.52097e+01 7.75605e+00 57 2008 7 1.94252e+01 1.76609e+00 32 2008 8 8.31223e+00 1.28839e+00 12 2008 9 2.72575e+00 2.09732e+00 92 2008 10 9.40024e+00 4.47912e+00 222 2008 11 1.11818e+01 7.22469e+00 200 2008 12 8.20986e+00 8.01230e+00 191 2009 1 8.14684e+00 2.72749e+00 122 2009 2 1.34187e+01 6.79655e+00 201 2009 3 2.26016e+01 8.36296e+00 130 2009 4 9.27892e-01 7.45655e-01 27 2009 5 1.23324e+01 7.77433e+00 65 2009 6 1.71446e+01 6.91906e+00 32 2009 7 3.58728e+01 3.70630e+00 20 2009 8 1.64635e+01 8.52931e+00 48 2009 9 6.17043e+00 4.38282e+00 47 2009 10 5.73896e+00 7.10436e+00 137 2009 11 6.54516e+00 4.58294e+00 143 2009 12 3.42404e-02 1.44560e-02 17 2010 1 1.61892e+00 2.71224e+00 90 2010 2 6.71951e-01 8.21572e-01 64 2010 3 4.55908e+00 2.43968e+00 134 2010 4 8.91291e+00 5.78870e+00 117 2010 5 1.05437e+01 9.59436e-01 32 2010 6 1.79309e+01 4.91489e+00 67 2010 7 1.47139e+01 2.05730e+00 24 2010 8 1.85964e+01 4.76838e+00 9 2010 9 1.22791e+01 5.82346e+00 153 2010 10 9.43048e+00 4.20089e+00 233 2010 11 1.46258e+01 7.54013e+00 235 2010 12 1.81236e+01 1.00455e+01 216 2011 1 1.72214e+01 7.58116e+00 167 2011 2 9.36407e+00 7.28141e+00 122 2011 3 1.60646e+01 8.53265e+00 102 2011 4 1.56128e+01 6.24959e+00 104 2011 5 2.89362e+01 8.01375e+00 83 2011 6 2.28681e+01 3.78933e+00 39 2011 7 2.95901e+01 1.59443e+00 42 2011 8 2.31835e+01 4.03833e+00 78 2011 9 2.52087e+01 9.25660e+00 105 2011 10 1.20505e+01 7.02156e+00 225 2011 11 1.04376e+01 5.93779e+00 164 2011 12 1.98233e+01 6.61078e+00 182 2012 1 2.19623e+01 9.63417e+00 134 2012 2 2.32622e+01 9.55557e+00 40 2012 3 1.87066e+01 8.86393e+00 173 2012 4 2.80299e+01 5.47187e+00 120 2012 5 2.16954e+01 7.54854e+00 70 2012 6 3.38833e+01 1.89153e+00 16 2012 7 2.35495e+00 1.00364e+00 48 2012 8 1.39996e+00 1.50838e+00 25 2012 9 1.54187e+00 1.69756e+00 62 2012 10 2.95462e+00 2.49268e+00 179 2012 11 1.73594e+01 5.40878e+00 156 2012 12 2.62249e+01 5.15602e+00 96 2013 1 2.50694e+01 1.02205e+01 127 2013 2 1.62490e+01 9.77323e+00 101 2013 3 3.72746e-01 8.23338e-01 72 2013 4 4.82146e+00 3.71038e+00 49 2013 5 1.64913e+01 4.68134e+00 65 2013 6 2.07640e+01 1.95726e+00 29 2013 7 nan nan 0 2013 8 1.04599e+00 1.19748e+00 32 2013 9 2.70885e+00 2.12067e+00 115 2013 10 6.23384e+00 5.33480e+00 139 2013 11 1.11714e+01 8.78717e+00 123 2013 12 6.64656e+00 8.04564e+00 120 2014 1 9.74718e-01 1.98151e+00 84 2014 2 1.01184e+01 1.54040e+01 152 2014 3 1.25727e+00 1.05002e+00 53 2014 4 8.75791e-01 9.20486e-01 52 2014 5 2.96475e+00 2.30236e+00 48 2014 6 3.35636e+01 2.14161e+01 47 2014 7 2.42104e+01 4.63065e+00 59 2014 8 2.05964e+01 7.88607e+00 50 2014 9 1.79779e+01 4.33255e+00 125 2014 10 1.06438e+01 7.18961e+00 264 2014 11 8.83812e+00 4.37477e+00 181 2014 12 9.04022e+00 8.91510e+00 136 2015 1 1.36437e+00 3.78913e+00 104 2015 2 7.73648e-01 1.71142e+00 53 2015 3 1.56214e+01 1.30109e+01 92 2015 4 1.29254e+01 7.58958e+00 62 2015 5 2.00150e+01 5.53065e+00 94 2015 6 2.02158e+01 2.61235e+00 57 2015 7 2.60170e+01 2.39739e+00 44 2015 8 5.57113e+00 4.32824e+00 27 2015 9 5.26919e+00 3.89767e+00 17 2015 10 1.30719e+01 8.17907e+00 194 2015 11 7.63090e+00 1.00636e+01 84 2015 12 2.54264e+00 1.76889e+00 92 2016 1 5.15300e-01 3.84609e-01 78 2016 2 3.87113e+00 3.14646e+00 185 2016 3 9.82326e+00 4.08183e+00 143 2016 4 2.56385e-01 3.97129e-01 14 2016 5 1.55623e+01 6.72305e+00 56 2016 6 2.68400e+01 5.42579e+00 95 2016 7 2.03934e+01 8.03623e+00 153 2016 8 9.78488e+00 9.32600e+00 107 2016 9 4.78549e+00 3.97045e+00 101 2016 10 9.85231e+00 5.21187e+00 275 2016 11 1.64643e+01 7.83394e+00 174 2016 12 2.06813e+01 8.61484e+00 155 2017 1 1.38731e+01 1.10343e+01 151 2017 2 7.98863e+00 4.64965e+00 131 2017 3 1.36827e+01 6.95493e+00 189 2017 4 1.86220e+01 9.33913e+00 99 2017 5 1.92911e+01 1.00180e+01 81 2017 6 6.25272e+00 1.22037e+01 20 2017 7 1.99208e+00 5.70438e+00 44 2017 8 1.09181e+01 1.29496e+01 40 2017 9 2.71964e+00 5.57631e+00 64 2017 10 8.13092e+00 4.84077e+00 188 2017 11 1.84667e+01 7.54006e+00 255 2017 12 1.97161e+01 8.12663e+00 99 2018 1 2.47887e+01 8.93411e+00 187 2018 2 2.37039e+01 6.21915e+00 80 2018 3 1.93210e+01 1.25714e+01 155 2018 4 2.14753e+01 5.31114e+00 129 2018 5 1.25530e+01 3.28697e+00 32 2018 6 1.19920e+01 4.90308e+00 51 2018 7 8.55164e+00 4.27205e+00 53 2018 8 6.07623e+00 1.95061e+00 34 2018 9 1.33534e+01 1.52465e+01 104 2018 10 5.48482e+00 1.37215e+01 184 2018 11 1.71681e+00 1.05202e+00 75 2018 12 6.12100e-02 7.80171e-02 48 2019 1 4.80979e-01 5.16249e-01 151 2019 2 1.26316e+00 1.05450e+00 48 2019 3 3.16027e+00 5.14794e+00 137 2019 4 6.20362e+00 4.41992e+00 103 2019 5 1.97328e+01 6.80094e+00 104 2019 6 1.91801e+01 7.62047e+00 32 2019 7 2.07652e+01 1.17522e+01 47 2019 8 9.38458e+00 7.82442e+00 28 2019 9 1.29915e+01 9.18903e+00 156 2019 10 1.23458e+01 4.11230e+00 153 2019 11 1.57390e+01 8.69469e+00 149 2019 12 9.53274e+00 7.54405e+00 88 2020 1 9.14921e+00 7.63120e+00 124 2020 2 6.94181e+00 6.62769e+00 140 2020 3 3.14051e+00 2.11571e+00 109 2020 4 1.09591e+01 4.81875e+00 78 2020 5 1.12160e+01 8.00235e+00 107 2020 6 8.32736e-01 9.71007e-01 30 2020 7 1.07376e+01 1.41916e+00 16 2020 8 1.93202e+01 5.24409e+00 48 2020 9 4.26537e+00 3.96888e+00 20 2020 10 2.21000e+00 2.44031e+00 102 2020 11 5.20902e+00 6.78786e+00 143 2020 12 7.83832e+00 6.81329e+00 212 2021 1 1.89465e-01 1.55092e-01 17 2021 2 8.09855e-01 6.31943e-01 28 2021 3 2.09403e+00 1.32085e+00 83 2021 4 9.66594e+00 7.24615e+00 54 2021 5 1.33523e+01 4.81136e+00 107 2021 6 2.74410e+01 2.93224e+00 48 2021 7 4.08961e-01 3.62296e-01 27 2021 8 1.39542e+00 1.41605e+00 43 2021 9 5.21360e+00 1.68993e+01 20 2021 10 1.16483e+00 1.15932e+00 30 2021 11 5.16197e+00 3.53672e+00 188 2021 12 7.30592e+00 4.45894e+00 88 2022 1 7.49239e+00 5.95803e+00 160 2022 2 8.36550e+00 5.41924e+00 146 2022 3 5.86313e+00 7.86231e+00 145 2022 4 9.04378e+00 3.45978e+00 38 2022 5 1.49332e+01 1.05705e+01 80 2022 6 1.29477e+01 4.80512e+00 48 2022 7 1.93878e+01 1.40044e+01 64 2022 8 9.24477e+00 2.48628e+00 48 2022 9 4.75704e+00 4.78373e+00 69 2022 10 1.15939e+01 4.11110e+00 292 2022 11 2.05651e+01 6.95564e+00 137 2022 12 2.15976e+01 9.83629e+00 212 2023 1 1.66412e+01 1.10646e+01 211 2023 2 4.05628e+00 3.87330e+00 175 2023 3 5.54040e+00 4.75624e+00 141 2023 4 1.71516e+01 1.37581e+01 80 2023 5 2.63894e+01 9.61369e+00 70 2023 6 2.19080e+01 7.38478e+00 79 2023 7 8.34546e+00 1.99144e+00 32 2023 8 2.22367e+01 1.06621e+01 75 2023 9 5.68681e+00 4.79096e+00 114 2023 10 6.30869e+00 4.11878e+00 182 2023 11 9.29541e+00 8.53719e+00 145 2023 12 1.11020e-01 1.68699e-01 32 2024 1 2.01776e-01 1.41869e-01 22 2024 2 3.00434e+00 2.47526e+00 112 2024 3 2.21033e+00 1.75950e+00 73 2024 4 nan nan 0