Year Fourseam
2008 95.14
2009 94.58
2010 95.99
2011 95.81
2012 96.19
2013 94.23
2014 94.15
2015 94.92
2016 93.67
2017 93.98
2018 92.96
2019 92.15
2021 93.08
2022 92.53