Year	Percent
1950	8.86098
1955	9.88975
1960	6.88134
1965	10.70899
1970	9.96152
1975	8.72879
1980	8.45734
1985	6.63422
1990	7.06284
1995	7.48063
2000	7.11615
2005	6.84233
2010	6.21252
2015	5.398
2020	4.70733
2025	4.53018
2030	4.82368
2035	4.95001
2040	5.00413
2045	4.85717
2050	4.58758
2055	4.41946
2060	4.46124
2065	4.62262
2070	4.75584
2075	4.78274
2080	4.71963
2085	4.63428
2090	4.61423
2095	4.67622
2100	4.75202