Year	Percent
1950	11.45282
1955	11.38139
1960	12.02703
1965	12.58667
1970	12.93964
1975	13.34963
1980	13.51026
1985	13.53571
1990	14.04655
1995	13.8598
2000	13.52921
2005	13.67606
2010	13.92321
2015	14.36344
2020	13.88331
2025	12.82587
2030	12.62647
2035	12.39878
2040	11.86247
2045	11.09427
2050	10.3375
2055	9.74063
2060	9.24607
2065	8.79969
2070	8.34158
2075	7.88786
2080	7.4595
2085	7.08907
2090	6.78976
2095	6.5278
2100	6.29888