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 1.13489e+00 9.00857e-02 24 2002 8 1.32812e+00 2.61503e-01 48 2002 9 5.70890e+00 1.64026e+01 89 2002 10 1.62621e+00 2.52539e-01 96 2002 11 1.97978e+00 4.89788e-01 144 2002 12 1.49536e+00 2.86293e-01 128 2003 1 1.62501e+00 4.53543e-01 112 2003 2 1.19338e+00 1.95068e-01 128 2003 3 5.66921e+00 2.98493e+00 26 2003 4 2.19050e+00 6.80678e-01 98 2003 5 1.66163e+00 1.23434e-01 32 2003 6 1.58044e+00 6.23137e-02 32 2003 7 2.21735e+00 1.26494e+00 48 2003 8 1.74290e+00 6.17097e-01 47 2003 9 1.71334e+00 2.45173e-01 112 2003 10 1.20966e+00 2.49742e-01 152 2003 11 1.28250e+00 2.61821e-01 176 2003 12 1.14292e+00 1.88170e-01 164 2004 1 8.75245e-01 1.30714e-01 131 2004 2 1.68884e+00 2.27470e-01 32 2004 3 1.27082e+00 2.89489e-01 160 2004 4 1.01007e+00 1.97419e-01 136 2004 5 8.30162e-01 9.52620e-02 112 2004 6 8.11251e-01 1.27858e-02 16 2004 7 1.22117e+00 1.37614e-01 60 2004 8 1.33788e+00 4.36489e-01 50 2004 9 1.45553e+00 6.83822e-01 46 2004 10 1.78926e+00 3.23975e-01 78 2004 11 1.43143e+00 3.43837e-01 144 2004 12 2.26195e+00 4.55887e-01 49 2005 1 1.42215e+00 1.51376e-01 136 2005 2 1.11020e+00 1.50538e-01 140 2005 3 1.75981e+00 1.98686e-01 144 2005 4 2.57426e+00 8.14122e-02 16 2005 5 1.35521e+00 3.51451e-01 91 2005 6 1.34174e+00 3.06596e-01 40 2005 7 1.98371e+00 3.73090e-01 74 2005 8 2.41389e+00 2.73154e-02 11 2005 9 9.82563e-01 2.68318e-01 58 2005 10 1.01528e+00 1.82241e-01 255 2005 11 8.90296e-01 1.68328e-01 193 2005 12 1.24693e+00 1.49606e-01 120 2006 1 1.44852e+00 1.94164e-01 74 2006 2 1.48821e+00 4.21783e-01 141 2006 3 1.43908e+00 2.52685e-01 160 2006 4 9.86497e-01 1.67843e-01 127 2006 5 9.24713e-01 2.30108e-01 128 2006 6 8.25965e-01 3.44203e-02 16 2006 7 8.89060e-01 1.88653e-02 32 2006 8 9.82365e-01 9.64108e-02 75 2006 9 1.21438e+00 1.53523e-01 132 2006 10 1.20969e+00 3.96582e-01 203 2006 11 1.18671e+00 4.61356e-01 208 2006 12 1.27291e+00 5.25354e-01 128 2007 1 1.77075e+00 3.02036e-01 78 2007 2 1.74266e+00 4.47517e-01 153 2007 3 1.16436e+00 2.52319e-01 244 2007 4 1.10445e+00 1.96806e-01 157 2007 5 1.29928e+00 3.18726e-01 64 2007 6 1.39569e+00 8.24533e-01 25 2007 7 1.00000e+00 9.77443e-02 94 2007 8 1.10204e+00 4.60666e-02 48 2007 9 1.88493e+00 2.58550e-01 48 2007 10 1.46308e+00 3.90286e-01 126 2007 11 1.05264e+00 1.88391e-01 240 2007 12 9.04959e-01 8.74100e-02 96 2008 1 1.10930e+00 2.42065e-01 112 2008 2 1.58550e+00 4.74384e-01 193 2008 3 2.05897e+00 5.19989e-01 72 2008 4 1.63670e+00 3.25641e-01 85 2008 5 1.09998e+00 1.82764e-01 96 2008 6 1.00664e+00 1.33955e-01 138 2008 7 9.22243e-01 3.98802e-02 47 2008 8 9.31361e-01 2.98269e-02 16 2008 9 1.52637e+00 5.66015e-01 150 2008 10 1.38528e+00 3.64555e-01 256 2008 11 1.22502e+00 3.47993e-01 239 2008 12 1.65054e+00 6.92738e-01 140 2009 1 1.66211e+00 3.79182e-01 127 2009 2 1.13482e+00 2.64337e-01 206 2009 3 1.34577e+00 4.87822e-01 99 2009 4 2.51584e+00 7.28407e-01 24 2009 5 1.40018e+00 1.10425e-01 64 2009 6 1.42073e+00 2.12348e-01 32 2009 7 8.55816e-01 1.81541e-02 22 2009 8 1.51007e+00 3.47458e-01 57 2009 9 7.19616e+00 4.19392e+01 70 2009 10 1.73419e+00 2.98835e-01 179 2009 11 1.99344e+00 5.36793e-01 142 2009 12 3.20210e+00 1.06648e-01 16 2010 1 2.72169e+00 2.15627e-02 11 2010 2 2.60165e+00 1.83637e-01 48 2010 3 2.11355e+00 4.50600e-01 112 2010 4 1.72823e+00 5.65201e-01 129 2010 5 1.36488e+00 1.10660e-01 48 2010 6 1.21001e+00 1.87602e-01 96 2010 7 1.06616e+00 4.31222e-02 49 2010 8 1.80616e+00 6.19694e-02 8 2010 9 1.20360e+00 1.95373e-01 144 2010 10 1.09377e+00 1.82023e-01 310 2010 11 1.03048e+00 2.20277e-01 272 2010 12 1.02560e+00 2.25233e-01 160 2011 1 1.17901e+00 2.35748e-01 174 2011 2 1.44968e+00 2.16559e-01 131 2011 3 1.34745e+00 2.26314e-01 159 2011 4 1.35657e+00 2.25341e-01 128 2011 5 9.41364e-01 7.29894e-02 80 2011 6 1.06161e+00 1.21745e-01 104 2011 7 9.83808e-01 7.86233e-02 48 2011 8 1.28499e+00 2.69929e-01 86 2011 9 1.05696e+00 7.70713e-02 153 2011 10 1.12162e+00 3.04419e-01 182 2011 11 1.45085e+00 5.56907e-01 128 2011 12 1.13904e+00 2.33707e-01 183 2012 1 1.17774e+00 3.27343e-01 187 2012 2 1.49603e+00 3.48483e-01 59 2012 3 1.58290e+00 6.08143e-01 150 2012 4 1.10776e+00 2.52233e-01 189 2012 5 9.66609e-01 1.30073e-01 111 2012 6 1.05560e+00 1.93757e-02 16 2012 7 1.90939e+00 3.37244e-01 76 2012 8 2.64280e+00 1.15175e+00 30 2012 9 1.91540e+00 2.64528e-01 71 2012 10 1.74965e+00 2.93226e-01 176 2012 11 9.59363e-01 2.02855e-01 197 2012 12 9.00814e-01 3.33159e-01 100 2013 1 9.49574e-01 2.97120e-01 88 2013 2 1.09970e+00 2.09057e-01 89 2013 3 2.44926e+00 4.26073e-01 64 2013 4 2.67717e+00 6.32189e-01 24 2013 5 1.37074e+00 2.89040e-01 63 2013 6 1.18135e+00 2.90318e-02 32 2013 7 1.14358e+00 3.94899e-01 22 2013 8 1.20377e+01 2.93473e+01 41 2013 9 1.84660e+00 8.56065e-01 128 2013 10 1.51679e+00 2.94307e-01 168 2013 11 1.17831e+00 2.30793e-01 82 2013 12 1.49247e+00 2.68129e-01 107 2014 1 2.14906e+00 2.56704e-01 69 2014 2 1.60553e+00 3.17798e-01 121 2014 3 2.44917e+00 3.16588e-01 33 2014 4 2.25615e+00 2.42998e-01 48 2014 5 1.88814e+00 4.97453e-01 94 2014 6 1.15965e+00 1.91020e-01 52 2014 7 1.03025e+00 9.16038e-02 57 2014 8 1.01322e+00 1.63187e-01 63 2014 9 1.26416e+00 3.27508e-01 144 2014 10 1.26103e+00 3.00868e-01 272 2014 11 1.35084e+00 5.56386e-01 150 2014 12 1.54210e+00 5.13737e-01 144 2015 1 2.16400e+00 3.33737e-01 95 2015 2 1.88547e+00 4.99753e-01 94 2015 3 1.51719e+00 1.67901e-01 121 2015 4 1.20839e+00 4.65884e-02 25 2015 5 1.65943e+00 4.55843e-01 135 2015 6 1.26983e+00 2.93992e-01 59 2015 7 1.25953e+00 2.05279e-01 44 2015 8 1.56876e+00 4.80676e-01 32 2015 9 1.30284e+00 1.78115e-01 99 2015 10 1.29504e+00 1.84348e-01 145 2015 11 2.02011e+00 7.32782e-01 128 2015 12 1.95617e+00 4.20337e-01 137 2016 1 3.48469e+00 1.07237e-01 12 2016 2 2.48019e+00 1.63310e-01 59 2016 3 1.92599e+00 2.27210e-01 44 2016 4 3.00438e+00 4.37331e-01 39 2016 5 1.13946e+00 1.97779e-01 112 2016 6 1.00776e+00 1.00946e-01 112 2016 7 1.10456e+00 1.74346e-01 160 2016 8 1.72170e+00 3.21893e-01 120 2016 9 1.73640e+00 3.05573e-01 99 2016 10 1.48965e+00 5.44725e-01 272 2016 11 8.77664e-01 1.56713e-01 188 2016 12 1.10837e+00 2.34666e-01 113 2017 1 1.94775e+00 3.27425e-01 27 2017 2 1.95655e+00 4.98684e-01 101 2017 3 1.51267e+00 5.99199e-01 168 2017 4 1.30767e+00 3.11437e-01 100 2017 5 1.00555e+00 2.47039e-01 79 2017 6 1.50337e+00 3.75468e-01 44 2017 7 1.77927e+00 3.99117e-01 53 2017 8 1.37181e+00 2.83169e-01 48 2017 9 1.48083e+00 5.01082e-01 104 2017 10 1.61299e+00 7.36637e-01 193 2017 11 1.02553e+00 2.00295e-01 236 2017 12 9.25578e-01 7.06645e-02 111 2018 1 1.12830e+00 4.89061e-01 201 2018 2 1.76694e+00 8.95612e-01 80 2018 3 1.37713e+00 3.67592e-01 176 2018 4 1.06573e+00 1.02341e-01 135 2018 5 1.20355e+00 2.11134e-01 91 2018 6 1.42907e+00 1.60616e-01 49 2018 7 1.14694e+00 1.61638e-01 78 2018 8 1.58440e+00 1.41454e-01 16 2018 9 1.42644e+00 5.79717e-01 168 2018 10 3.77650e+00 1.35130e+01 228 2018 11 1.75078e+00 4.12996e-01 84 2018 12 2.26117e+00 4.83245e-01 20 2019 1 2.29077e+00 1.33336e-02 11 2019 2 2.80330e+00 2.67569e-01 48 2019 3 1.67632e+00 2.45880e-01 171 2019 4 1.43296e+00 1.73037e-01 73 2019 5 1.18835e+00 2.30053e-01 140 2019 6 1.11046e+00 2.72423e-01 85 2019 7 1.28808e+00 1.64669e-01 70 2019 8 1.24431e+00 4.19482e-01 129 2019 9 1.46654e+00 4.61985e-01 217 2019 10 1.29736e+00 3.96401e-01 144 2019 11 1.06396e+00 3.35048e-01 153 2019 12 1.38898e+00 6.51081e-01 53 2020 1 2.22050e+00 2.43078e-01 48 2020 2 1.79183e+00 2.00499e-01 34 2020 3 2.46168e+00 2.89470e-01 50 2020 4 1.88868e+00 5.97532e-01 34 2020 5 1.49306e+00 3.56658e-01 36 2020 6 1.61683e+00 3.32512e-01 80 2020 7 2.45033e+00 3.55415e-02 16 2020 8 9.83389e-01 3.09745e-02 34 2020 9 2.22890e+00 1.37839e+00 63 2020 10 1.91044e+00 2.07150e-01 112 2020 11 1.58891e+00 5.49889e-01 186 2020 12 2.07441e+00 3.23918e+00 243 2021 1 2.02163e+00 2.37114e-01 71 2021 2 nan nan 0 2021 3 2.11724e+00 4.78210e-01 73 2021 4 1.66598e+00 3.78811e-01 145 2021 5 1.35965e+00 3.28838e-01 92 2021 6 1.04045e+00 2.42993e-01 32 2021 7 1.94387e+00 3.11894e-01 64 2021 8 1.90196e+00 6.24225e-01 89 2021 9 2.77312e+00 9.19907e-01 83 2021 10 2.18469e+00 2.46303e-01 107 2021 11 1.20406e+00 2.32710e-01 210 2021 12 1.23460e+00 2.13659e-01 117 2022 1 1.70061e+00 3.48368e-01 64 2022 2 1.58051e+00 2.93844e-01 76 2022 3 1.73840e+00 4.53834e-01 144 2022 4 1.94212e+00 3.39889e-01 32 2022 5 1.38102e+00 3.01235e-01 44 2022 6 1.10506e+00 1.89070e-01 119 2022 7 1.07519e+00 1.63305e-01 112 2022 8 1.26833e+00 1.80738e-01 74 2022 9 7.76975e+00 3.93457e+01 99 2022 10 1.23570e+00 2.17930e-01 302 2022 11 1.19800e+00 3.05974e-01 147 2022 12 1.23282e+00 4.28916e-01 179 2023 1 1.11891e+00 1.38022e-01 143 2023 2 2.22651e+00 1.02533e+00 81 2023 3 1.44811e+00 1.80169e-01 112 2023 4 1.62567e+00 2.95022e-01 64 2023 5 9.09851e-01 1.12491e-01 48 2023 6 1.44226e+00 2.73340e-01 55 2023 7 1.33418e+00 9.75272e-02 32 2023 8 1.11832e+00 1.27906e-01 57 2023 9 7.27645e+00 5.45524e+01 128 2023 10 1.57213e+00 5.27769e-01 195 2023 11 1.00193e+00 2.48790e-01 120 2023 12 2.05180e+00 1.26088e+00 58 2024 1 2.31092e+00 5.85846e-01 62 2024 2 2.10066e+00 5.72008e-01 43 2024 3 1.90683e+00 1.91993e-01 36 2024 4 nan nan 0