77% (1966)

52% (1971)

52% (1968)

0% (2005)

0% (1975)

52% (1966)

0% (1981)

0% (1986)

52% (1961)

0% (1992)

0% (1970)

60% (1974)

52% (1971)

52% (1969)

5% (1979)

32% (1965)

0% (1963)

0% (1988)

0% (1993)

5% (1975)