Year	Percent
1950	10.90279
1955	10.84593
1960	10.71372
1965	11.70669
1970	11.78481
1975	11.6722
1980	11.69787
1985	12.28293
1990	12.61421
1995	12.75203
2000	12.92955
2005	13.18846
2010	13.38798
2015	13.43942
2020	13.27907
2025	13.05213
2030	12.78447
2035	12.46501
2040	12.06443
2045	11.62108
2050	11.17812
2055	10.73232
2060	10.30355
2065	9.89892
2070	9.53196
2075	9.19283
2080	8.87806
2085	8.5725
2090	8.29268
2095	8.02327
2100	7.76642