Year	Percent
1950	11.14429
1955	10.89706
1960	10.69827
1965	10.19946
1970	9.51634
1975	9.1955
1980	9.12363
1985	8.99528
1990	9.95019
1995	9.77282
2000	9.3285
2005	8.64034
2010	7.79477
2015	7.04624
2020	6.84832
2025	7.12382
2030	7.8635
2035	8.87581
2040	10.12803
2045	11.59713
2050	13.09577
2055	14.39838
2060	15.50018
2065	16.57285
2070	17.97309
2075	19.78893
2080	21.53342
2085	23.02247
2090	24.34969
2095	25.59872
2100	26.82382