Year	Percent
1950	5.48109
1955	5.14733
1960	5.03495
1965	5.01927
1970	5.01227
1975	5.02071
1980	5.02036
1985	5.00327
1990	5.3548
1995	5.31929
2000	5.25993
2005	5.21365
2010	5.1584
2015	5.04252
2020	5.02146
2025	5.10143
2030	5.26765
2035	5.50582
2040	5.82374
2045	6.24609
2050	6.77564
2055	7.44473
2060	8.26254
2065	9.3176
2070	10.63962
2075	12.16787
2080	13.78837
2085	15.47554
2090	17.23525
2095	19.03876
2100	20.83919