62% (1994)

64% (1995)

63% (1991)

62% (1997)

38% (1997)

33% (1992)

36% (1998)

53% (1991)

62% (1995)

70% (1992)

33% (2002)

85% (2003)

65% (1998)

40% (2000)

0% (1995)

50% (2000)

43% (1999)

40% (2004)

60% (2003)

68% (1991)