Year	Percent
1950	12.87394
1955	12.6636
1960	14.13864
1965	14.03047
1970	14.2578
1975	14.07006
1980	13.28754
1985	14.32465
1990	15.10179
1995	16.27441
2000	16.29133
2005	14.57496
2010	13.82265
2015	14.59494
2020	14.72319
2025	14.50659
2030	13.78205
2035	12.9825
2040	12.53168
2045	12.31474
2050	12.01648
2055	11.52052
2060	10.92925
2065	10.39485
2070	9.99615
2075	9.68032
2080	9.33428
2085	8.9361
2090	8.50215
2095	8.13674
2100	7.81425