Year	Percent
1950	11.54889
1955	11.7993
1960	11.77344
1965	11.26549
1970	11.43954
1975	11.6582
1980	11.83405
1985	11.89627
1990	11.97821
1995	12.09283
2000	12.19814
2005	12.24255
2010	12.20238
2015	12.44192
2020	12.757
2025	12.84299
2030	12.54145
2035	12.18054
2040	11.86267
2045	11.52199
2050	11.11679
2055	10.62223
2060	10.10659
2065	9.60927
2070	9.13475
2075	8.71446
2080	8.28385
2085	7.87587
2090	7.50012
2095	7.14155
2100	6.82645