Year	Percent
1950	10.24261
1955	11.63903
1960	14.84557
1965	14.72063
1970	14.30023
1975	13.26299
1980	13.30939
1985	12.7319
1990	12.02938
1995	10.687
2000	9.95601
2005	9.15809
2010	7.76239
2015	7.42939
2020	7.40097
2025	6.62093
2030	6.58146
2035	6.31788
2040	5.62422
2045	4.91502
2050	4.58095
2055	4.64376
2060	4.85128
2065	4.9306
2070	4.75749
2075	4.49532
2080	4.34836
2085	4.40312
2090	4.56111
2095	4.6701
2100	4.63999