Year	Percent
1950	12.26097
1955	11.56274
1960	12.26432
1965	10.8905
1970	13.79931
1975	12.66918
1980	11.28065
1985	7.65303
1990	7.22288
1995	7.96549
2000	7.03452
2005	6.44484
2010	5.57811
2015	5.10492
2020	5.26163
2025	5.04384
2030	4.87253
2035	4.64096
2040	4.4493
2045	4.36827
2050	4.40335
2055	4.46954
2060	4.49502
2065	4.4835
2070	4.46294
2075	4.46085
2080	4.48337
2085	4.52002
2090	4.53638
2095	4.5195
2100	4.48041