Year	Percent
1950	9.78421
1955	9.91673
1960	9.94393
1965	9.94985
1970	9.86929
1975	9.86919
1980	10.03217
1985	10.26864
1990	10.62232
1995	11.08981
2000	11.24341
2005	10.95607
2010	10.30562
2015	10.16611
2020	10.61675
2025	10.81583
2030	10.51234
2035	10.11221
2040	9.82228
2045	9.66713
2050	9.51865
2055	9.31972
2060	9.07856
2065	8.81425
2070	8.58729
2075	8.36343
2080	8.16922
2085	7.95861
2090	7.74039
2095	7.53172
2100	7.3317