Year	Percent
1950	5.62124
1955	5.54906
1960	5.39353
1965	5.16206
1970	4.88224
1975	4.64337
1980	4.63382
1985	4.42209
1990	4.87297
1995	4.946
2000	4.97854
2005	4.9873
2010	4.74751
2015	4.82763
2020	4.9325
2025	5.08985
2030	5.33635
2035	5.93575
2040	7.14765
2045	8.83071
2050	10.53538
2055	12.12766
2060	13.57907
2065	15.07145
2070	16.92576
2075	19.13651
2080	21.10641
2085	22.84236
2090	24.45841
2095	26.04505
2100	27.57353