46% (2005)

0% (1968)

20% (1976)

25% (1976)

59% (1980)

53% (1999)

64% (1975)

58% (1969)

30% (1976)

0% (1980)

53% (1977)

62% (1967)

70% (1968)

60% (1971)

0% (1979)

0% (1968)

0% (1977)

0% (1969)

0% (1971)

70% (1972)