55% (1982)

53% (1992)

53% (1981)

69% (1984)

40% (1980)

63% (1991)

50% (2001)

40% (1979)

59% (1993)

58% (1980)

60% (1996)

58% (2002)

64% (1981)

65% (2003)

70% (1995)

56% (1981)

45% (1996)

60% (1980)

64% (1978)

75% (2024)