Year	Percent
1950	13.98283
1955	14.65358
1960	12.03921
1965	7.72638
1970	12.82875
1975	10.4926
1980	13.55094
1985	12.37571
1990	8.2019
1995	8.62748
2000	8.37177
2005	8.49453
2010	7.98625
2015	7.46809
2020	6.68625
2025	6.44223
2030	6.44068
2035	6.39533
2040	6.2008
2045	5.88909
2050	5.60771
2055	5.48696
2060	5.51397
2065	5.54022
2070	5.47198
2075	5.32484
2080	5.1874
2085	5.11765
2090	5.12155
2095	5.14045
2100	5.11953