Year	Percent
1950	13.15847
1955	13.98373
1960	14.49958
1965	14.88718
1970	15.40589
1975	11.8779
1980	11.21124
1985	11.26552
1990	12.48402
1995	10.66558
2000	8.39931
2005	6.96701
2010	6.97802
2015	7.28149
2020	7.15387
2025	6.48393
2030	5.90245
2035	5.60231
2040	5.61436
2045	5.75455
2050	5.79246
2055	5.65745
2060	5.46395
2065	5.35904
2070	5.37983
2075	5.46908
2080	5.51407
2085	5.46583
2090	5.35973
2095	5.2743
2100	5.25255