Year 1 2 3 4 5 6 7 8 9 10 11 12 Total 2021 0.0 2.8 2.3 0.0 1.0 2.5 0.0 2020 2.0 7.4 3.5 3.8 1.8 5.6 1.8 3.5 0.5 3.3 0.0 5.1 38 2019 146.0 36.3 18.5 20.6 13.5 8.9 16.5 18.5 89.7 112.0 0.0 1.3 482 2018 82.3 47.8 92.7 5.6 14.7 1.3 1.3 53.3 71.1 200.4 204.2 2017 53.8 115.5 150.6 75.4 30.0 23.6 2.0 3.3 24.6 12.7 6.6 0.0 498 2016 125.5 159.3 151.4 18.5 13.9 18.8 6.8 6.3 40.6 189.0 179.8 162.0 1072 2015 157.2 99.8 135.1 49.5 7.4 3.5 16.5 45.4 60.4 120.9 203.2 208.0 1107 2014 145.5 159.5 188.2 83.3 40.9 9.4 6.1 20.3 38.1 151.6 160.0 149.3 1152 2013 111.0 82.3 124.4 105.7 58.9 23.1 0.0 26.9 146.3 48.5 99.0 86.6 913 2012 145.8 97.3 143.5 44.7 10.7 31.0 15.0 0.2 3.0 207.5 174.0 242.8 1115 2011 114.3 104.1 185.1 121.7 53.3 4.8 8.4 11.4 34.5 77.5 115.1 107.4 938 2010 136.9 58.6 149.1 82.0 75.7 14.7 1.5 23.4 90.4 93.4 117.6 97.1 940 2009 211.6 36.1 131.6 66.6 52.1 4.6 8.4 19.3 50.3 180.3 331.7 69.3 1162 2008 114.3 110.4 100.0 39.6 13.7 26.4 8.9 52.6 14.7 41.1 173.7 105.1 801 2007 142.7 59.4 15.2 25.4 29.2 18.5 27.4 120.6 86.9 196.8 Average 112 58 26 14 8 18 48 102 132 117 113 82 851 Std Dev 63 37 24 10 8 16 39 64 92 81 61 49 345