Year	Percent
1950	11.01227
1955	9.09287
1960	8.6069
1965	8.90924
1970	11.3252
1975	11.08555
1980	10.89343
1985	10.839
1990	11.36496
1995	11.89111
2000	11.87756
2005	11.51531
2010	10.354
2015	11.22013
2020	12.11155
2025	10.5436
2030	9.39988
2035	8.39434
2040	7.91452
2045	7.60221
2050	7.39434
2055	7.12967
2060	6.68885
2065	6.23435
2070	5.88336
2075	5.66439
2080	5.52136
2085	5.3887
2090	5.23896
2095	5.08695
2100	4.95609