Year % (cumulative) 2006 0.508866131305695 2007 0.65606814622879 2008 0.744178533554077 2009 0.778911590576172 2010 0.690590620040894 2011 0.737952530384064 2012 22.1817092895508 2013 23.105899810791 2014 23.8777694702148 2015 24.5631198883057 2016 26.9124069213867 2017 26.1903400421143 2018 29.5733623504639 2019 28.0729503631592 2020 33.3286933898926 2021 30.7561550140381 2022 31.1477546691895