64% (1991)

42% (1978)

68% (1991)

69% (1979)

63% (1992)

64% (1978)

71% (2001)

63% (1984)

63% (1971)

64% (2015)

48% (2008)

67% (1967)

61% (2002)

67% (1992)

66% (2002)

56% (2018)

62% (2009)

66% (1986)

61% (1976)

48% (2012)