Year	Percent
1950	9.62805
1955	9.98956
1960	9.53716
1965	9.97932
1970	10.14341
1975	10.14086
1980	10.21483
1985	10.47102
1990	10.46163
1995	9.88547
2000	9.55275
2005	9.96579
2010	10.54048
2015	11.05249
2020	10.83854
2025	10.87998
2030	10.79917
2035	10.92433
2040	10.86254
2045	10.71707
2050	10.50505
2055	10.26668
2060	10.0502
2065	9.8451
2070	9.59995
2075	9.33254
2080	9.05472
2085	8.80124
2090	8.55577
2095	8.32023
2100	8.08189