Year	Percent
1950	6.63111
1955	8.4009
1960	9.29943
1965	9.65437
1970	9.73296
1975	9.4147
1980	10.01409
1985	10.80754
1990	10.58964
1995	11.1461
2000	11.25296
2005	11.54074
2010	10.33195
2015	10.7105
2020	11.17446
2025	11.67517
2030	10.56784
2035	9.69509
2040	9.22559
2045	8.98894
2050	8.78904
2055	8.48762
2060	8.08654
2065	7.63435
2070	7.22595
2075	6.89434
2080	6.60596
2085	6.34333
2090	6.08262
2095	5.84031
2100	5.62985