Year	Percent
1950	10.98794
1955	10.76553
1960	12.49011
1965	12.38645
1970	12.30263
1975	13.2071
1980	11.50888
1985	12.44693
1990	14.66482
1995	13.85122
2000	13.2893
2005	13.51929
2010	13.5476
2015	13.61409
2020	13.5406
2025	13.32312
2030	13.0046
2035	12.46785
2040	11.77698
2045	11.1006
2050	10.51108
2055	9.92775
2060	9.37679
2065	8.85371
2070	8.35198
2075	7.90104
2080	7.47985
2085	7.11901
2090	6.79396
2095	6.50459
2100	6.24596