74% (2017)

95% (1999)

69% (1982)

50% (1998)

50% (1975)

67% (1990)

74% (1973)

54% (2006)

70% (2004)

70% (1985)

73% (1984)

70% (1978)

52% (1980)

0% (1994)

63% (1984)

53% (1990)

35% (2008)

50% (1986)

60% (1990)

70% (1998)