Year	Percent
1950	10.48645
1955	10.5999
1960	10.44627
1965	11.9024
1970	11.84816
1975	11.62632
1980	11.34614
1985	11.48053
1990	11.86524
1995	12.16731
2000	12.38067
2005	12.5317
2010	12.49342
2015	12.43376
2020	12.32556
2025	12.05879
2030	11.76762
2035	11.45553
2040	11.1428
2045	10.78308
2050	10.39602
2055	10.0177
2060	9.63724
2065	9.2639
2070	8.91954
2075	8.58789
2080	8.27529
2085	7.97188
2090	7.68847
2095	7.40751
2100	7.14512