81% (1994)

74% (1998)

73% (2006)

59% (1999)

80% (1987)

60% (1987)

66% (2000)

77% (1983)

67% (2003)

0% (1983)

59% (1994)

85% (1984)

0% (2013)

40% (2005)

46% (2000)

68% (1996)

72% (1982)

67% (1992)

68% (1981)

50% (1998)