Year	Percent
1950	13.7242
1955	13.63646
1960	15.73956
1965	15.468
1970	15.26959
1975	14.70441
1980	15.516
1985	11.19968
1990	16.84416
1995	16.82307
2000	14.99773
2005	12.60503
2010	10.87644
2015	11.20264
2020	10.92711
2025	10.38285
2030	9.50444
2035	8.75278
2040	8.3182
2045	8.01902
2050	7.65563
2055	7.21275
2060	6.80165
2065	6.4922
2070	6.27355
2075	6.10197
2080	5.91703
2085	5.72705
2090	5.55571
2095	5.41983
2100	5.3151