Year % of population 1990 0.26818400827837935 1991 0.4338710532693669 1992 0.6861767321160439 1993 0.9741653268487337 1994 1.9652821304891708 1995 3.708284095842747 1996 6.8018578042706235 1997 10.651134851854065 1998 15.876499650236212 1999 22.897091647707768 2000 30.539167456641284 2001 36.639735754218925 2002 44.68782247390036 2003 49.783419651462786 2004 54.972951870983714 2005 58.50166870478958 2006 60.43565534794746 2007 65.67887860744501 2008 67.66888641161417 2009 68.88825516867625 2010 70.9817321029504 2011 71.39906815852784 2012 74.20812425774652 2013 75.6969819554253 2014 77.36962892687832 2015 78.6799700498259 2016 83.1812572109828 2017 84.41154905999483 2018 85.9799355897481 2019 87.4699228389831 2020 88.62266269492036 2021 89.28684740519476