Year	Percent
1950	8.06258
1955	7.394
1960	10.26378
1965	11.27046
1970	10.24461
1975	8.25414
1980	8.42412
1985	8.3723
1990	8.94816
1995	9.04892
2000	7.26201
2005	5.44218
2010	4.78739
2015	4.9781
2020	5.11015
2025	4.64437
2030	4.18138
2035	3.88347
2040	3.71785
2045	3.76504
2050	3.90012
2055	3.95157
2060	3.88815
2065	3.81596
2070	3.83422
2075	3.97056
2080	4.16875
2085	4.33101
2090	4.387
2095	4.36629
2100	4.35447