Year	Percent
1950	12.37166
1955	12.6222
1960	12.91714
1965	12.04053
1970	12.0859
1975	13.57319
1980	13.71166
1985	13.34541
1990	13.25195
1995	12.73957
2000	13.18057
2005	14.06306
2010	13.20181
2015	11.85743
2020	11.54446
2025	11.42998
2030	11.17401
2035	10.67933
2040	10.0926
2045	9.56357
2050	9.14986
2055	8.81586
2060	8.48792
2065	8.13205
2070	7.75465
2075	7.4125
2080	7.10347
2085	6.83739
2090	6.58713
2095	6.34747
2100	6.1247