Year	Percent
1950	10.87068
1955	11.13747
1960	10.92854
1965	11.07576
1970	11.25652
1975	11.53554
1980	12.42883
1985	12.61624
1990	14.48244
1995	14.1562
2000	14.12554
2005	14.7733
2010	16.60396
2015	18.85162
2020	21.22703
2025	23.20219
2030	24.35848
2035	24.9212
2040	25.2886
2045	25.82867
2050	26.65511
2055	27.66673
2060	28.40898
2065	29.10948
2070	29.83204
2075	30.22645
2080	30.67919
2085	31.17501
2090	31.6564
2095	32.12002
2100	32.55681