Year	Percent
1950	4.93602
1955	4.89681
1960	4.90922
1965	4.95529
1970	4.99681
1975	5.00754
1980	4.96013
1985	4.97882
1990	5.50138
1995	5.28608
2000	5.3389
2005	5.3622
2010	5.35243
2015	5.37913
2020	5.41335
2025	5.48113
2030	5.64399
2035	5.90977
2040	6.24132
2045	6.68348
2050	7.21461
2055	7.95337
2060	8.92612
2065	10.1037
2070	11.39634
2075	12.74674
2080	14.10581
2085	15.52871
2090	17.00074
2095	18.48825
2100	19.958