Year	Percent
1950	10.1043
1955	10.06859
1960	10.03241
1965	10.13745
1970	10.20131
1975	10.211
1980	10.36627
1985	10.66999
1990	10.95141
1995	10.8954
2000	10.70447
2005	10.39601
2010	10.64194
2015	10.935
2020	10.96741
2025	10.69601
2030	10.29701
2035	9.99207
2040	9.79906
2045	9.6669
2050	9.48759
2055	9.22911
2060	8.9349
2065	8.66338
2070	8.43766
2075	8.25328
2080	8.08808
2085	7.89838
2090	7.68629
2095	7.47499
2100	7.2858