Year % (cumulative) 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 19.0320339202881 2015 17.8360595703125 2016 20.7080364227295 2017 22.3889636993408 2018 22.409309387207 2019 24.1995334625244 2020 24.8688259124756 2021 27.7093696594238 2022 28.1638488769531