Year	Percent
1950	8.78361
1955	6.53091
1960	6.53468
1965	6.83954
1970	7.42623
1975	7.9258
1980	7.96086
1985	7.40242
1990	6.11563
1995	5.66354
2000	5.78201
2005	6.01589
2010	6.13008
2015	6.11902
2020	5.848
2025	5.56414
2030	5.62523
2035	5.79549
2040	5.76088
2045	5.69103
2050	5.63538
2055	5.56492
2060	5.53504
2065	5.5681
2070	5.60494
2075	5.58618
2080	5.53103
2085	5.45616
2090	5.3856
2095	5.33383
2100	5.3007