Year	Percent
1950	10.26498
1955	10.35751
1960	10.47403
1965	10.28119
1970	10.2534
1975	10.47738
1980	10.51477
1985	10.62004
1990	10.62738
1995	11.04658
2000	11.18078
2005	10.95013
2010	10.83296
2015	10.86871
2020	11.03584
2025	11.22079
2030	11.02941
2035	10.75979
2040	10.52025
2045	10.33229
2050	10.13168
2055	9.89137
2060	9.59737
2065	9.28101
2070	8.99337
2075	8.70887
2080	8.45616
2085	8.20638
2090	7.95207
2095	7.70292
2100	7.4643