Year	Percent
1950	14.37591
1955	7.00989
1960	9.99668
1965	11.04095
1970	11.25684
1975	9.49174
1980	7.34548
1985	7.67004
1990	7.82766
1995	8.6688
2000	9.01802
2005	6.38452
2010	4.9693
2015	5.30844
2020	6.08194
2025	7.25664
2030	6.98631
2035	6.50532
2040	5.88578
2045	5.67755
2050	6.0341
2055	6.52367
2060	6.69661
2065	6.48057
2070	6.1219
2075	5.90193
2080	5.93101
2085	6.08196
2090	6.1533
2095	6.06058
2100	5.86057