Year	Percent
1950	11.17298
1955	10.80639
1960	6.96633
1965	7.69027
1970	9.70649
1975	10.78633
1980	9.74641
1985	7.76147
1990	7.61571
1995	7.82244
2000	8.6983
2005	8.78443
2010	7.07073
2015	5.37531
2020	5.19207
2025	6.07825
2030	6.95893
2035	6.81675
2040	6.39809
2045	5.83288
2050	5.59383
2055	5.84992
2060	6.25839
2065	6.41316
2070	6.22004
2075	5.89503
2080	5.69576
2085	5.71422
2090	5.85998
2095	5.94023
2100	5.86832