Year 1 2 3 4 5 6 7 8 9 10 11 12 Total 2023 105.6 106.7 89.6 82.0 13.7 28.4 15.7 0.5 2022 149.3 78.0 86.3 155.2 67.1 42.7 18.3 0.0 0.5 64.8 89.1 181.1 932 2021 198.9 90.2 36.6 25.9 18.5 21.1 0.0 4.3 152.9 172.0 345.2 172.9 1238 2020 279.4 70.1 31.2 30.5 68.6 64.5 15.2 28.2 102.6 113.8 187.7 233.7 1225 2019 182.6 68.8 13.5 48.3 23.6 18.3 20.6 17.5 84.1 87.1 59.4 129.8 754 2018 280.4 47.0 46.5 122.2 11.4 21.6 0.8 9.1 65.5 93.2 169.9 218.9 1086 2017 81.8 161.0 167.4 94.5 36.8 39.9 0.5 4.3 27.4 110.7 284.4 120.4 1129 2016 215.6 141.5 210.5 14.5 8.1 26.4 25.9 4.3 43.2 288.3 223.0 144.0 1345 2015 135.6 149.6 127.5 24.9 6.9 4.3 19.5 20.3 70.6 110.0 157.2 287.5 1114 2014 128.7 170.2 207.5 54.6 48.3 6.8 7.9 12.2 51.0 183.9 131.6 158.0 1161 2013 91.4 88.9 121.6 91.7 84.3 35.6 0.2 36.3 142.2 20.1 91.9 25.1 829 2012 192.8 122.9 181.1 60.4 30.7 39.9 15.0 3.0 1.5 179.1 182.6 265.2 1274 2011 172.7 118.1 163.6 83.0 64.2 17.3 16.2 9.6 59.4 71.4 150.6 90.9 1017 2010 213.1 89.9 176.5 76.2 85.8 23.9 1.8 27.2 106.2 90.1 205.5 240.0 1336 2009 93.7 58.2 91.4 30.2 68.8 9.4 12.2 21.6 56.4 127.8 302.3 63.7 936 2008 69.3 47.2 125.2 63.0 22.3 29.2 11.9 36.1 17.5 56.6 124.2 126.0 729 2007 44.4 79.0 123.2 44.2 18.8 24.1 27.2 26.4 55.4 90.7 106.9 213.3 854 Average 155 99 118 65 40 27 12 15 65 116 176 167 1059 Std Dev 70 39 62 38 28 15 9 12 45 64 81 74 202