Year % (cumulative) 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 2.31416654586792 2015 2.59131908416748 2016 2.52869844436646 2017 2.71651148796082 2018 2.56553196907043 2019 2.90901446342468 2020 2.61305236816406 2021 3.13152861595154 2022 3.47440481185913