59% (1995)

61% (1980)

50% (1974)

51% (1981)

0% (1976)

62% (1975)

64% (1956)

60% (1968)

64% (1995)

65% (1966)

46% (1988)

78% (2000)

57% (1968)

0% (1983)

45% (1970)

50% (1989)

0% (1992)

65% (1967)

90% (1981)

0% (1955)