59% (1994)

64% (1998)

54% (1994)

65% (1998)

56% (2001)

40% (1993)

22% (1997)

68% (1996)

70% (1995)

49% (2000)

48% (1994)

56% (2003)

54% (2000)

60% (1989)

0% (2003)

37% (1991)

40% (1990)

49% (2004)

58% (1996)

53% (1998)