Year % of population 1990 0 1991 0.0003948224270771176 1992 0.0018415144088505826 1993 0.0053682608433584175 1994 0.014560813905279286 1995 0.039994624593210605 1996 0.09378696142465533 1997 0.1804332822448258 1998 0.4031441166026041 1999 0.7808896731347768 2000 1.5594173599420407 2001 2.1858659957968123 2002 3.6644969161933982 2003 4.776127783677968 2004 6.118489760001581 2005 7.227997209658137 2006 8.833435818455927 2007 11.403422725383564 2008 14.151578706826577 2009 17.05509898567492 2010 20.58048745895184 2011 23.452142486477676 2012 25.959223576938534 2013 28.074617282363086 2014 30.36231818447584 2015 32.99828514561577 2016 35.79008099375554 2017 38.28625188590463 2018 42.1831447725219 2019 47.46896572667324 2020 54.194899707505144 2021 58.15764895332847