Year	Percent
1950	8.66011
1955	9.97039
1960	9.97987
1965	9.65659
1970	8.54185
1975	8.05903
1980	7.50166
1985	7.74498
1990	7.82436
1995	6.6551
2000	5.21524
2005	4.40873
2010	4.72306
2015	5.16544
2020	5.28944
2025	5.37871
2030	5.11143
2035	4.74438
2040	4.67595
2045	4.91278
2050	5.17563
2055	5.27843
2060	5.18561
2065	4.99995
2070	4.90521
2075	4.98359
2080	5.14036
2085	5.22889
2090	5.17836
2095	5.04844
2100	4.94269