47% (1997)

40% (1982)

30% (1974)

62% (1988)

56% (1990)

76% (1982)

46% (2003)

53% (2009)

30% (1994)

58% (1993)

60% (1992)

60% (2011)

50% (2003)

69% (2016)

74% (1989)

72% (1978)

65% (1982)

69% (1980)

60% (1975)

50% (1998)