Year % of population 1990 0 1991 0.01477408215804612 1992 0.059892434834234905 1993 0.13289260001087538 1994 0.396668243986263 1995 0.8698029773774363 1996 1.7330471864595904 1997 3.0059765945999826 1998 5.154744656814487 1999 6.5123344619880505 2000 10.09081985776581 2001 12.418721603593418 2002 15.299384987132646 2003 16.940240927297374 2004 19.537619670989727 2005 21.379596111717376 2006 23.14271898941665 2007 25.424673653782044 2008 29.1265509637299 2009 31.333636051480838 2010 34.31448597811538 2011 39.04027597222628 2012 42.89359665620186 2013 46.11875445521579 2014 49.49228081924878 2015 53.02442880732108 2016 56.78740185363218 2017 61.52165839660324 2018 68.25772927097887 2019 68.09861754705466 2020 70.51005413434943 2021 74.03222871201453