Year	Percent
1950	10.68809
1955	10.52659
1960	10.43236
1965	11.74327
1970	11.73186
1975	11.5521
1980	11.53852
1985	12.10961
1990	12.43818
1995	12.59731
2000	12.79281
2005	13.09256
2010	13.30481
2015	13.34563
2020	13.20112
2025	12.98314
2030	12.70769
2035	12.37962
2040	11.99068
2045	11.55315
2050	11.10755
2055	10.65692
2060	10.22017
2065	9.80768
2070	9.43165
2075	9.08182
2080	8.75134
2085	8.4294
2090	8.13435
2095	7.85017
2100	7.5779