Year	Percent
1950	4.58391
1955	4.97393
1960	5.18467
1965	5.29431
1970	5.36071
1975	5.46555
1980	5.51181
1985	5.60887
1990	6.15838
1995	6.3183
2000	6.34291
2005	6.19812
2010	6.67907
2015	6.94524
2020	7.49905
2025	8.22416
2030	8.9947
2035	9.88945
2040	11.19893
2045	12.70158
2050	14.23639
2055	15.09879
2060	15.57148
2065	16.23971
2070	17.17929
2075	19.23087
2080	20.94847
2085	22.32736
2090	23.56918
2095	24.94101
2100	26.47895