Year	Percent
1950	7.19087
1955	8.38686
1960	7.16189
1965	7.51341
1970	8.483
1975	8.16389
1980	6.86573
1985	5.97613
1990	6.3241
1995	6.6155
2000	6.46681
2005	5.90327
2010	5.54471
2015	6.00599
2020	6.03533
2025	5.91794
2030	5.7272
2035	5.46214
2040	5.32041
2045	5.35626
2050	5.43833
2055	5.44384
2060	5.36825
2065	5.25764
2070	5.17369
2075	5.15182
2080	5.16133
2085	5.15348
2090	5.10413
2095	5.0246
2100	4.94918