Year	Percent
1950	7.41133
1955	7.27696
1960	7.62646
1965	9.99037
1970	8.73709
1975	8.02244
1980	7.56409
1985	6.79472
1990	5.75288
1995	6.10973
2000	6.1162
2005	5.82414
2010	6.01745
2015	5.30486
2020	5.11356
2025	5.36446
2030	5.26453
2035	5.33572
2040	5.32546
2045	5.23769
2050	5.1643
2055	5.16744
2060	5.20814
2065	5.21816
2070	5.18212
2075	5.12509
2080	5.06368
2085	5.02716
2090	5.00979
2095	4.99289
2100	4.96148