Year	Percent
1950	11.91384
1955	11.72121
1960	13.43243
1965	13.36227
1970	13.18131
1975	13.00083
1980	13.27983
1985	13.79678
1990	14.16563
1995	14.36612
2000	14.49
2005	14.45266
2010	14.34941
2015	14.16992
2020	13.77899
2025	13.34781
2030	12.88462
2035	12.40567
2040	11.89326
2045	11.36483
2050	10.85716
2055	10.36359
2060	9.88278
2065	9.43995
2070	9.01886
2075	8.62741
2080	8.25368
2085	7.90957
2090	7.5752
2095	7.26804
2100	6.97295