Year % (national estimate) 1965 100.93495126317885 1975 78.37690036093186 1985 64.86874487284659 2001 90.08106819265619 2003 91.8608695652174 2005 94.61968680089485 2010 96 2012 97.24698339670064 2015 93.69794527457992 2022 84.4562698480817