Year	Percent
1950	10.05567
1955	11.5989
1960	14.5457
1965	12.3143
1970	13.33036
1975	14.32453
1980	12.416
1985	9.25057
1990	8.91041
1995	10.56125
2000	7.77377
2005	5.93438
2010	5.55266
2015	5.61192
2020	5.75085
2025	5.38407
2030	4.8922
2035	4.58301
2040	4.469
2045	4.50743
2050	4.59997
2055	4.63145
2060	4.58357
2065	4.52764
2070	4.51779
2075	4.58236
2080	4.67628
2085	4.72875
2090	4.71574
2095	4.66265
2100	4.6202