Year	Percent
1950	8.62366
1955	7.42394
1960	6.83635
1965	6.7871
1970	8.46978
1975	8.10595
1980	7.27058
1985	7.2913
1990	10.72551
1995	12.94306
2000	14.84328
2005	15.00966
2010	15.68627
2015	18.26201
2020	20.46027
2025	22.5785
2030	23.70531
2035	24.90707
2040	26.31408
2045	28.22917
2050	29.79149
2055	31.57021
2060	33.12862
2065	34.3771
2070	35.67447
2075	36.52516
2080	37.01373
2085	37.27779
2090	37.46661
2095	37.6157
2100	37.80224