Year	Percent
1950	7.69294
1955	6.06004
1960	5.50874
1965	5.82507
1970	6.68558
1975	7.85501
1980	7.53937
1985	8.31364
1990	10.52414
1995	12.11573
2000	13.08207
2005	13.80128
2010	14.7898
2015	16.96894
2020	19.06917
2025	20.99406
2030	22.9291
2035	24.64174
2040	26.63146
2045	28.99398
2050	31.22328
2055	33.03431
2060	33.79249
2065	34.14731
2070	34.07598
2075	34.31153
2080	34.72266
2085	35.16921
2090	35.51509
2095	35.71312
2100	35.86679