67% (1999)

68% (1999)

70% (1991)

62% (2006)

78% (1991)

50% (1991)

75% (2002)

62% (1992)

60% (1990)

60% (2003)

0% (1994)

50% (1997)

66% (2003)

74% (2002)

58% (2003)

74% (2001)

60% (1990)

0% (1998)

0% (1994)

53% (2006)