Year	Percent
1950	10.13142
1955	10.34169
1960	10.5635
1965	10.4884
1970	10.41966
1975	10.73054
1980	10.8332
1985	10.98251
1990	11.00093
1995	11.42757
2000	11.54227
2005	11.26058
2010	11.09994
2015	11.10666
2020	11.25838
2025	11.40312
2030	11.18764
2035	10.89667
2040	10.64238
2045	10.44564
2050	10.24235
2055	10.0095
2060	9.72296
2065	9.41361
2070	9.13317
2075	8.85608
2080	8.61142
2085	8.36646
2090	8.11779
2095	7.87312
2100	7.63824