62% (1994)

64% (1995)

62% (1997)

63% (1991)

36% (1998)

38% (1997)

33% (1992)

62% (1995)

33% (2002)

53% (1991)

40% (2000)

85% (2003)

70% (1992)

40% (2004)

65% (1998)

50% (2000)

0% (1995)

43% (1999)

68% (1991)

60% (2003)