Year	% (national estimate)
1978	99.13085465958474
2001	95.20726411369918
2006	97.19186331801758
2008	100.60088378162042
2010	95.58773643392716
2011	97.10649537759633
2012	76.14441217642019
2013	89.69197186514674
2014	90.9330246703434
2020	89.56696617584795