79% (1983)

62% (2007)

61% (2010)

65% (1971)

64% (2021)

79% (1991)

68% (2009)

51% (2011)

67% (1986)

61% (1995)

60% (2001)

41% (2013)

59% (2002)

56% (2016)

76% (1995)

61% (1986)

63% (1992)

49% (1997)

65% (1983)

67% (1969)