Year	Percent
1950	8.01291
1955	11.01757
1960	15.40859
1965	15.02871
1970	13.49174
1975	8.3103
1980	8.16864
1985	5.81844
1990	9.1337
1995	9.43617
2000	7.98871
2005	5.3523
2010	3.46743
2015	3.81551
2020	5.06171
2025	5.73968
2030	5.50028
2035	4.97731
2040	4.47473
2045	4.32851
2050	4.5389
2055	4.87433
2060	5.08539
2065	5.08755
2070	4.9706
2075	4.87709
2080	4.88896
2085	4.98466
2090	5.07374
2095	5.08081
2100	5.0157