41% (1971)

30% (1986)

58% (1988)

51% (1965)

48% (1989)

0% (1991)

59% (1993)

0% (1992)

59% (1967)

56% (1994)

70% (1967)

44% (1964)

0% (1989)

40% (1991)

61% (1972)

0% (1970)

0% (1992)

0% (1968)

59% (1976)

60% (1968)