63% (2014)

38% (1998)

60% (1985)

62% (1990)

61% (1990)

67% (1990)

70% (2010)

68% (1992)

50% (1999)

72% (1989)

62% (1988)

59% (2016)

62% (1976)

0% (1972)

64% (1978)

74% (1991)

68% (2002)

69% (1979)

67% (2008)

73% (2006)