71% (1998)

66% (1992)

63% (2004)

52% (1994)

44% (2000)

55% (1996)

64% (1995)

52% (2002)

70% (1995)

47% (1996)

40% (2000)

33% (1999)

44% (1991)

46% (1992)

60% (1998)

34% (1995)

75% (2001)

61% (1991)

0% (1995)