76% (2010)

70% (1977)

79% (1991)

77% (1994)

64% (1995)

69% (2008)

69% (1982)

73% (1997)

55% (1977)

67% (2023)

78% (1998)

66% (1987)

82% (2000)

62% (1993)

85% (2013)

0% (2015)

73% (2012)

85% (1968)

72% (2011)

71% (2017)