Year	Percent
1950	10.2823
1955	10.41421
1960	10.50121
1965	10.61822
1970	9.60752
1975	10.01599
1980	10.50844
1985	10.83738
1990	10.90142
1995	10.79699
2000	10.75028
2005	10.66827
2010	10.35289
2015	10.1586
2020	9.83203
2025	10.00666
2030	10.20288
2035	9.78279
2040	9.34403
2045	9.01787
2050	8.81367
2055	8.65706
2060	8.50582
2065	8.28444
2070	8.00194
2075	7.7375
2080	7.52515
2085	7.33852
2090	7.15123
2095	6.94952
2100	6.74451