Year	Percent
1950	4.93948
1955	4.72133
1960	4.43317
1965	4.52351
1970	4.67627
1975	4.7654
1980	4.89341
1985	4.4517
1990	5.54874
1995	5.44368
2000	5.67083
2005	5.61238
2010	6.69999
2015	7.46364
2020	8.8254
2025	10.2334
2030	11.67809
2035	12.93803
2040	13.77496
2045	13.99286
2050	13.72586
2055	16.04196
2060	18.62189
2065	20.56796
2070	21.6018
2075	22.62188
2080	23.66382
2085	24.64839
2090	25.56207
2095	26.39759
2100	27.13873