81% (1994)

72% (2006)

77% (1983)

74% (1998)

59% (1999)

46% (2000)

80% (1987)

0% (2013)

66% (2000)

67% (2003)

59% (1994)

68% (1981)

60% (1987)

40% (2005)

85% (1984)

40% (1983)

70% (1989)

62% (1995)

72% (1982)

60% (1991)