Year	% (national estimate)
1978	81.42636258214148
1979	100.64843834432075
1980	79.123213595983
1982	103.71976647206004
1984	104.4698370021845
1986	99.79357798165137
1990	100.54408172329556
1998	101.70212765957449
2006	97.451831854012
2008	100.47264394156403
2014	102.48671271214727
2020	99.12971877375222