Year	Percent
1950	15.92654
1955	15.99673
1960	16.10012
1965	16.0858
1970	15.9076
1975	15.43812
1980	14.85325
1985	14.22053
1990	13.55048
1995	13.63618
2000	13.62122
2005	13.51996
2010	13.41729
2015	13.21971
2020	13.40109
2025	13.94001
2030	14.75621
2035	15.71161
2040	16.69041
2045	17.69391
2050	18.70817
2055	19.65726
2060	20.54179
2065	21.32956
2070	22.01049
2075	22.608
2080	23.10738
2085	23.52037
2090	23.8466
2095	24.1
2100	24.29907