58% (1993)

69% (1996)

77% (1998)

75% (1993)

69% (1998)

60% (1995)

77% (1995)

65% (1994)

62% (1997)

64% (2002)

51% (1995)

54% (1999)

73% (1999)

65% (2000)

40% (2004)

59% (1996)

57% (1997)