Year	Percent
1950	5.42622
1955	5.36455
1960	5.21623
1965	3.01805
1970	2.14736
1975	2.68958
1980	1.91503
1985	1.93357
1990	1.92993
1995	1.80148
2000	1.71944
2005	1.68894
2010	1.54404
2015	1.95694
2020	3.178
2025	5.47664
2030	8.10148
2035	11.494
2040	14.35519
2045	16.60381
2050	18.69539
2055	20.47889
2060	22.62438
2065	24.71535
2070	26.93082
2075	28.77175
2080	29.70419
2085	30.33516
2090	30.93079
2095	31.54218
2100	32.16749