Year	Percent
1950	10.06614
1955	10.73157
1960	10.45506
1965	9.76564
1970	11.71635
1975	12.08558
1980	13.55452
1985	13.60674
1990	12.90018
1995	11.23903
2000	10.22679
2005	9.93503
2010	10.43366
2015	10.6328
2020	10.63328
2025	11.44366
2030	10.43589
2035	9.40895
2040	8.97724
2045	8.9214
2050	9.09558
2055	9.03784
2060	8.58651
2065	7.93201
2070	7.40425
2075	7.18373
2080	7.12021
2085	7.00681
2090	6.71331
2095	6.32069
2100	5.96053