Year	Percent
1950	6.56735
1955	7.4051
1960	8.24286
1965	8.97148
1970	9.53586
1975	9.79872
1980	10.00715
1985	10.20038
1990	11.47834
1995	11.58037
2000	11.67957
2005	11.8645
2010	12.33119
2015	12.95707
2020	13.66404
2025	14.38083
2030	15.16707
2035	16.30721
2040	18.13673
2045	19.68263
2050	21.2657
2055	22.85752
2060	24.21212
2065	25.60015
2070	26.89739
2075	28.17207
2080	29.33246
2085	30.38478
2090	31.335
2095	32.19938
2100	32.98333