Year	Percent
1950	7.18487
1955	6.57693
1960	5.763
1965	4.8707
1970	4.33491
1975	3.97408
1980	4.07834
1985	4.52104
1990	4.56779
1995	4.45594
2000	4.81993
2005	5.11903
2010	5.16379
2015	5.24012
2020	5.65903
2025	6.69339
2030	8.2894
2035	10.06382
2040	11.64019
2045	13.27672
2050	14.66974
2055	15.96057
2060	17.29818
2065	18.68244
2070	20.36609
2075	22.35742
2080	24.204
2085	25.89825
2090	27.44959
2095	28.91657
2100	30.31002