Year % (cumulative) 2007 1.16853594779968 2008 0.84449291229248 2009 1.00566720962524 2010 0.87062793970108 2011 2.27603006362915 2012 0.761877059936523 2013 0.834389984607697 2014 1.61342000961304 2015 1.80997002124786 2016 2.14305996894836 2017 2.05079007148743 2018 2.10011601448059 2019 1.78208994865417 2020 2.44194054603577 2021 2.55690240859985 2022 2.7283718585968