45% (2005)

59% (1980)

0% (1971)

64% (1975)

53% (1999)

30% (1976)

20% (1976)

43% (1977)

70% (1968)

57% (1968)

80% (1981)

0% (1968)

53% (1977)

62% (1967)

0% (1977)

53% (1967)

20% (1975)

58% (1969)

70% (1978)

0% (1968)