Year	Percent
1950	8.66119
1955	8.55145
1960	11.02578
1965	12.25935
1970	10.56105
1975	9.8488
1980	9.68556
1985	10.69465
1990	10.5277
1995	9.87774
2000	9.1071
2005	8.7143
2010	8.67501
2015	8.63288
2020	8.828
2025	9.15826
2030	8.45437
2035	7.94557
2040	7.63619
2045	7.51521
2050	7.45653
2055	7.3522
2060	7.11517
2065	6.80571
2070	6.50499
2075	6.28602
2080	6.1448
2085	6.01811
2090	5.87594
2095	5.69896
2100	5.51706