64% (1994)

63% (1991)

62% (1997)

64% (1995)

36% (1998)

33% (1992)

38% (1997)

68% (1991)

62% (1995)

40% (2000)

70% (1992)

85% (2003)

65% (1998)

53% (1991)

60% (2003)

43% (1999)

0% (1995)

33% (2002)

40% (2004)

50% (2000)