Year	Percent
1950	4.83544
1955	5.24361
1960	5.56735
1965	6.92108
1970	7.36884
1975	7.45017
1980	7.83145
1985	7.66372
1990	9.29878
1995	9.44007
2000	9.78265
2005	10.2582
2010	11.03188
2015	12.4171
2020	13.87138
2025	15.93964
2030	18.11743
2035	20.05268
2040	21.58007
2045	23.5958
2050	26.58413
2055	29.76264
2060	33.01687
2065	35.04993
2070	36.53708
2075	37.51371
2080	39.67339
2085	41.42011
2090	42.68034
2095	43.55084
2100	44.1868