59% (1990)

50% (1984)

71% (2002)

66% (2000)

67% (1994)

78% (1993)

73% (1996)

60% (1986)

65% (1991)

35% (1999)

58% (2004)

54% (1991)

70% (1990)

50% (1997)

65% (1991)

60% (1995)

63% (1992)

63% (1989)

50% (1993)

49% (1984)