Year	Percent
1950	10.10843
1955	10.22684
1960	10.28256
1965	9.90591
1970	9.8873
1975	10.16171
1980	10.38693
1985	10.46442
1990	10.63231
1995	10.76351
2000	10.69461
2005	10.7308
2010	10.52977
2015	11.69152
2020	11.98833
2025	11.83784
2030	10.83801
2035	10.40266
2040	9.84786
2045	9.38332
2050	8.93485
2055	8.47411
2060	7.99307
2065	7.53211
2070	7.14619
2075	6.8339
2080	6.57142
2085	6.35591
2090	6.16387
2095	5.99527
2100	5.86053