Year	Percent
1950	11.38929
1955	11.58481
1960	11.45745
1965	11.33481
1970	11.56127
1975	11.65293
1980	11.56456
1985	11.99959
1990	12.44964
1995	12.53337
2000	12.2001
2005	11.90537
2010	11.97535
2015	12.28866
2020	12.42598
2025	12.42916
2030	12.09538
2035	11.77658
2040	11.51113
2045	11.24799
2050	10.9474
2055	10.58963
2060	10.19899
2065	9.80613
2070	9.40762
2075	9.05842
2080	8.73652
2085	8.40763
2090	8.08353
2095	7.77551
2100	7.5002