Year	Percent
1950	10.5456
1955	11.23836
1960	10.80055
1965	11.69009
1970	11.57477
1975	11.53136
1980	11.86612
1985	12.3306
1990	12.94664
1995	12.9589
2000	12.7007
2005	12.56819
2010	12.51855
2015	13.12982
2020	13.61832
2025	13.28562
2030	12.81107
2035	12.49576
2040	12.23684
2045	11.8997
2050	11.46212
2055	10.95285
2060	10.43693
2065	9.96733
2070	9.52058
2075	9.12045
2080	8.7267
2085	8.34081
2090	7.98838
2095	7.64828
2100	7.34581