Year	Percent
1950	10.34114
1955	10.39688
1960	10.21218
1965	10.59034
1970	11.0222
1975	11.43086
1980	11.61455
1985	11.56572
1990	11.93661
1995	12.18945
2000	12.22063
2005	12.09825
2010	12.41153
2015	13.22483
2020	13.06022
2025	12.35214
2030	11.45833
2035	11.3631
2040	11.28684
2045	10.91949
2050	10.30854
2055	9.69495
2060	9.21509
2065	8.83198
2070	8.4908
2075	8.1282
2080	7.75816
2085	7.39633
2090	7.07941
2095	6.82394
2100	6.60108