Year	Percent
1950	9.45366
1955	9.73385
1960	9.90479
1965	10.27375
1970	11.21919
1975	11.46585
1980	12.08562
1985	9.39717
1990	7.41707
1995	6.42417
2000	7.0039
2005	7.31072
2010	7.80151
2015	7.68393
2020	7.23314
2025	6.7439
2030	5.62996
2035	5.70511
2040	6.01407
2045	6.34819
2050	6.34124
2055	6.02011
2060	5.64924
2065	5.46875
2070	5.51468
2075	5.61829
2080	5.61205
2085	5.47777
2090	5.3058
2095	5.21789
2100	5.21992