Year	Percent
1950	7.36432
1955	8.00856
1960	9.61933
1965	11.05596
1970	9.84835
1975	7.85289
1980	7.57281
1985	7.43838
1990	7.90458
1995	7.82522
2000	5.9748
2005	4.75749
2010	4.646
2015	5.39601
2020	6.11338
2025	5.94693
2030	5.57976
2035	5.11989
2040	4.95122
2045	5.21098
2050	5.59721
2055	5.75852
2060	5.62078
2065	5.37708
2070	5.25277
2075	5.32507
2080	5.50341
2085	5.60034
2090	5.53617
2095	5.37426
2100	5.23243