Year	Percent
1950	11.81166
1955	11.34851
1960	10.85583
1965	12.92389
1970	12.95525
1975	13.1373
1980	12.86009
1985	12.89359
1990	13.15674
1995	13.1572
2000	12.54954
2005	11.01114
2010	8.39926
2015	7.33235
2020	8.834
2025	10.00916
2030	8.93709
2035	7.82447
2040	6.88909
2045	6.41523
2050	6.37797
2055	6.50875
2060	6.49757
2065	6.17811
2070	5.739
2075	5.44883
2080	5.36433
2085	5.39646
2090	5.40752
2095	5.31966
2100	5.15775