Year	Percent
1950	11.33655
1955	11.72449
1960	11.69866
1965	11.77489
1970	12.20187
1975	12.48126
1980	12.84898
1985	12.93087
1990	13.47308
1995	13.65818
2000	13.3667
2005	13.20662
2010	13.14948
2015	13.21257
2020	13.27152
2025	12.9213
2030	12.48299
2035	12.08495
2040	11.75101
2045	11.41493
2050	11.06087
2055	10.65612
2060	10.23875
2065	9.86283
2070	9.49573
2075	9.16887
2080	8.84863
2085	8.52997
2090	8.22488
2095	7.93634
2100	7.64618