Year	Percent
1950	9.57877
1955	9.67908
1960	9.56204
1965	9.38657
1970	10.16865
1975	10.05621
1980	9.85063
1985	9.80671
1990	10.23303
1995	10.46039
2000	10.55346
2005	10.7248
2010	10.99707
2015	11.21988
2020	11.35407
2025	11.31964
2030	11.23865
2035	11.12298
2040	10.95489
2045	10.70772
2050	10.41264
2055	10.10648
2060	9.78616
2065	9.472
2070	9.17273
2075	8.90155
2080	8.64849
2085	8.41201
2090	8.17783
2095	7.96058
2100	7.74797