56% (1969)

62% (1982)

0% (1984)

62% (1978)

54% (1970)

32% (1973)

66% (1967)

44% (1986)

90% (1973)

33% (1984)

51% (1970)

55% (1972)

0% (1987)

61% (1973)

0% (1998)

40% (1990)

62% (2009)

35% (1972)

57% (1968)

64% (2000)