Year	Percent
1950	11.70825
1955	6.96333
1960	7.65797
1965	10.65544
1970	12.726
1975	13.00325
1980	11.57284
1985	10.80174
1990	10.61076
1995	11.45412
2000	12.11717
2005	11.45447
2010	9.61462
2015	8.14853
2020	9.44923
2025	11.08634
2030	10.03031
2035	8.89613
2040	8.104
2045	7.91164
2050	7.96769
2055	7.89636
2060	7.59598
2065	7.14573
2070	6.73287
2075	6.48125
2080	6.36094
2085	6.25586
2090	6.0906
2095	5.87333
2100	5.66913