Year % of population 1990 0.00734823950366306 1991 0.015138365925668853 1992 0.031765035017205186 1993 0.06306243903431238 1994 0.1091002723296443 1995 0.19508868295345388 1996 0.4719073945618889 1997 1.0940212991457736 1998 1.902457574831105 1999 3.442650715353082 2000 5.637983676920067 2001 7.31672738237629 2002 9.064518197388416 2003 10.611569832431313 2004 12.666021309638282 2005 14.73085611734541 2006 16.675706181456093 2007 20.808844235385216 2008 25.275119662466913 2009 29.513251543488384 2010 34.2289324762407 2011 37.35412912775329 2012 40.40392417999147 2013 43.26196992986173 2014 46.058704174694164 2015 48.86241685290493 2016 52.235500967983704 2017 54.37669735757036 2018 59.43157767416813 2019 63.66743364685443 2020 68.90106580155015 2021 72.24826052426498 2022 76.13632017803984