Year	Percent
1950	11.63558
1955	11.71824
1960	11.71545
1965	12.44671
1970	13.10309
1975	13.54944
1980	13.8639
1985	14.22551
1990	14.42385
1995	14.37873
2000	14.47067
2005	14.31191
2010	14.10777
2015	13.99602
2020	13.71232
2025	13.27082
2030	12.85524
2035	12.4358
2040	12.006
2045	11.58058
2050	11.14335
2055	10.71196
2060	10.30586
2065	9.91578
2070	9.56501
2075	9.20658
2080	8.87146
2085	8.54689
2090	8.24959
2095	7.95472
2100	7.66469