60% (2011)

50% (2003)

69% (2016)

74% (1989)

72% (1978)

65% (1982)

47% (1988)

69% (1980)

60% (1975)

40% (1989)

50% (1998)

68% (2015)

51% (1974)

52% (2015)

70% (2003)

68% (2013)

62% (1989)

70% (1991)

61% (1981)

63% (1970)