Year	Percent
1950	12.86232
1955	12.86241
1960	15.17071
1965	15.41554
1970	15.65076
1975	15.35627
1980	15.3691
1985	15.38871
1990	14.88108
1995	13.73072
2000	11.90434
2005	9.25203
2010	8.21093
2015	9.72079
2020	10.83006
2025	9.53622
2030	8.28764
2035	7.27893
2040	6.77217
2045	6.71181
2050	6.80218
2055	6.73246
2060	6.3531
2065	5.87
2070	5.55292
2075	5.45287
2080	5.47381
2085	5.47204
2090	5.36705
2095	5.18564
2100	5.02355