Year	Percent
1950	6.88858
1955	8.11693
1960	9.35249
1965	9.5001
1970	9.88937
1975	9.64976
1980	10.25264
1985	10.9564
1990	10.6959
1995	11.24281
2000	11.30705
2005	11.41001
2010	9.99483
2015	10.39455
2020	10.8524
2025	11.35121
2030	10.28478
2035	9.44493
2040	8.99555
2045	8.77039
2050	8.58026
2055	8.28947
2060	7.90009
2065	7.46138
2070	7.06684
2075	6.74771
2080	6.4705
2085	6.21646
2090	5.95869
2095	5.71413
2100	5.5014