Year 1 2 3 4 5 6 7 8 9 10 11 12 Total 2019 0.4 2018 2.0 1.4 0.2 2.2 0.4 0.4 3.6 1.0 2017 2.2 2.0 3.0 3.4 0.8 0.0 0.0 0.0 0.0 0.0 2.6 0.4 14 2016 0.4 1.4 2.4 0.4 1.0 2.2 0.2 0.2 0.0 2015 4.0 0.4 0.0 0.8 1.6 3.6 2.2 2.0 0.2 2.2 2014 0.8 0.6 1.8 0.2 2.6 1.4 1.2 0.2 0.2 0.0 0.0 0.8 10 2013 0.0 0.0 0.0 0.2 0.4 0.0 1.2 1.8 1.0 0.6 1.0 Average 1 1 2 1 1 1 1 1 2 1 1 1 12 Std Dev 1 1 2 1 1 1 1 1 1 1 1 1 3