Year	Percent
1950	13.70737
1955	7.50123
1960	8.34169
1965	11.15546
1970	13.01322
1975	14.33665
1980	12.34522
1985	10.2257
1990	9.40016
1995	10.16307
2000	11.43296
2005	10.43348
2010	7.98386
2015	6.63278
2020	6.90898
2025	8.24922
2030	7.45213
2035	6.41501
2040	5.82747
2045	5.8
2050	5.90569
2055	5.86085
2060	5.67393
2065	5.45629
2070	5.31942
2075	5.30994
2080	5.34942
2085	5.35067
2090	5.29267
2095	5.20475
2100	5.13403