Year % of population 2005 89.18487787341263 2006 89.49863021284277 2007 89.83127681378423 2008 90.37180323302607 2009 90.70962568526734 2010 90.80106889024852 2011 90.88866667806796 2012 90.93943580916803 2013 91.11527278753744 2014 91.2823869590267 2015 91.38557105033384 2016 91.47534672229563 2017 91.52746797347487 2018 91.58130177931946 2019 91.61984801721545 2020 91.51214640930584 2021 91.32742829293748 2022 91.35532411641294