46% (2005)

20% (1976)

53% (1999)

59% (1980)

60% (1967)

57% (1968)

53% (1967)

43% (1977)

0% (1969)

58% (1969)

70% (1978)

53% (1977)

25% (1976)

64% (1975)

60% (1971)

0% (1979)

80% (1981)

0% (1976)

0% (1967)

70% (1968)