61% (1977)

65% (1997)

74% (1994)

44% (2012)

69% (2018)

69% (2002)

62% (1977)

58% (2014)

48% (2004)

73% (2019)

59% (1990)

72% (2009)

46% (1999)

65% (2014)

61% (2016)

70% (1985)

60% (2004)

73% (2015)

54% (1986)

77% (2018)