Year % (cumulative) 1986 36.4794311523438 2004 52.3378982543945 2007 62.7201614379883 2008 65.5483627319336 2009 62.0915184020996 2010 47.5882110595703 2011 50.1284713745117 2012 59.0372581481934 2013 69.4126663208008 2014 67.7881622314453 2015 65.5860977172852 2016 66.1190719604492 2017 66.182243347168 2018 67.6346206665039 2019 67.6948623657227 2020 69.3674774169922 2021 69.2682571411133 2022 70.213996887207