Year	Percent
1950	8.35238
1955	8.09876
1960	12.18742
1965	16.27212
1970	16.70505
1975	12.65002
1980	8.68477
1985	7.8214
1990	6.06597
1995	8.25283
2000	9.52967
2005	7.93478
2010	5.16473
2015	3.21778
2020	3.59547
2025	4.77658
2030	5.46475
2035	5.29841
2040	4.83962
2045	4.37611
2050	4.24422
2055	4.45835
2060	4.79887
2065	5.0214
2070	5.03826
2075	4.93474
2080	4.84852
2085	4.8629
2090	4.94877
2095	5.0187
2100	5.01522