66% (1968)

65% (2013)

66% (2001)

86% (1976)

91% (2011)

74% (2015)

75% (1976)

77% (2004)

61% (1993)

71% (1983)

62% (2012)

65% (1960)

67% (2005)

83% (2002)

40% (2019)

72% (2006)

74% (1997)

64% (1993)

74% (2016)

70% (1995)