Year	Percent
1950	8.01767
1955	9.84883
1960	12.89325
1965	14.9681
1970	14.18973
1975	10.78875
1980	9.81889
1985	9.61868
1990	10.2513
1995	10.58327
2000	8.88777
2005	6.42806
2010	6.08478
2015	6.82617
2020	6.98535
2025	6.28315
2030	5.53152
2035	4.97162
2040	4.76526
2045	4.88418
2050	5.01281
2055	4.91124
2060	4.6479
2065	4.42316
2070	4.37478
2075	4.49536
2080	4.65324
2085	4.71609
2090	4.65449
2095	4.55398
2100	4.51613