63% (2013)

63% (1992)

70% (1988)

58% (1996)

68% (1990)

68% (1978)

68% (2009)

74% (1993)

74% (1998)

62% (1991)

69% (1984)

42% (2002)

70% (1992)

31% (1992)

69% (2011)

61% (1993)

44% (1994)

59% (2008)

71% (2020)

64% (1978)