Year	Percent
1950	26.75723
1955	27.33251
1960	32.68021
1965	31.21657
1970	29.16595
1975	30.4917
1980	30.38469
1985	33.46852
1990	33.56275
1995	32.65944
2000	32.2986
2005	33.28469
2010	34.40036
2015	33.63945
2020	31.06945
2025	28.42379
2030	27.42465
2035	29.19094
2040	31.61292
2045	32.98829
2050	31.66975
2055	29.06367
2060	27.87824
2065	27.86221
2070	28.27818
2075	28.27525
2080	27.52682
2085	26.35262
2090	25.30798
2095	24.7656
2100	24.66161