Year	Percent
1950	5.62227
1955	6.05113
1960	6.74924
1965	7.097
1970	8.1145
1975	8.1981
1980	9.73651
1985	10.36137
1990	13.28787
1995	14.25889
2000	15.5618
2005	16.7442
2010	18.13389
2015	19.68355
2020	21.59243
2025	23.68461
2030	25.83927
2035	27.92957
2040	30.23621
2045	32.50473
2050	34.78871
2055	37.30484
2060	39.58386
2065	41.33994
2070	42.63781
2075	43.09828
2080	43.30609
2085	43.33994
2090	43.30325
2095	43.1785
2100	42.98539