Year	Percent
1950	6.6868
1955	6.85279
1960	8.07018
1965	8.43934
1970	7.27165
1975	7.02121
1980	7.45469
1985	7.33731
1990	6.88856
1995	5.92515
2000	5.0918
2005	5.47959
2010	6.15226
2015	6.10244
2020	5.70235
2025	5.66615
2030	5.00578
2035	5.145
2040	5.43708
2045	5.58668
2050	5.5318
2055	5.37236
2060	5.22437
2065	5.18602
2070	5.25859
2075	5.3297
2080	5.31452
2085	5.22335
2090	5.12061
2095	5.06469
2100	5.06039