Year	Percent
1950	15.71886
1955	16.4514
1960	16.93096
1965	16.66481
1970	15.82087
1975	14.52759
1980	13.19041
1985	12.30744
1990	11.16732
1995	10.71308
2000	10.24899
2005	9.88131
2010	10.05829
2015	10.45482
2020	11.13854
2025	11.73758
2030	12.07447
2035	12.36531
2040	12.89517
2045	13.93738
2050	15.45542
2055	16.96545
2060	18.31931
2065	19.478
2070	20.48215
2075	21.49656
2080	22.47949
2085	23.31286
2090	23.94974
2095	24.43387
2100	24.81351