Year	Percent
1950	11.06464
1955	12.51982
1960	6.26283
1965	7.43697
1970	10.23954
1975	12.29911
1980	11.66832
1985	9.02994
1990	7.87948
1995	8.00748
2000	9.48587
2005	10.15916
2010	8.5264
2015	6.24265
2020	5.80376
2025	6.65952
2030	6.93412
2035	6.30749
2040	5.58172
2045	5.02927
2050	4.84715
2055	5.02091
2060	5.20807
2065	5.14223
2070	4.89071
2075	4.67261
2080	4.64109
2085	4.78576
2090	4.95794
2095	5.01498
2100	4.93651