67% (1999)

55% (1991)

52% (2002)

59% (2000)

62% (2000)

37% (2003)

60% (2004)

54% (1991)

52% (1986)

66% (2002)

60% (1995)

50% (1995)

72% (1987)

54% (1991)

55% (1997)

0% (1990)

58% (2000)

66% (2001)

41% (1985)

58% (1999)