Year	Percent
1950	5.43219
1955	5.38384
1960	5.47675
1965	5.66482
1970	5.79259
1975	5.86123
1980	6.02624
1985	6.11079
1990	6.82443
1995	7.05725
2000	7.00852
2005	7.02252
2010	7.53316
2015	8.88723
2020	10.27439
2025	11.64614
2030	13.125
2035	14.60776
2040	16.0314
2045	17.33545
2050	18.51241
2055	19.77326
2060	21.23974
2065	22.99983
2070	24.16959
2075	24.79913
2080	25.33246
2085	25.89152
2090	26.51297
2095	27.12456
2100	27.66826