67% (1968)

68% (1993)

76% (2001)

80% (1986)

83% (2011)

72% (2002)

79% (2002)

79% (2006)

72% (1985)

67% (2009)

83% (2015)

83% (2009)

76% (2016)

67% (2010)

69% (1985)

51% (1998)

79% (2021)

78% (2021)

75% (1999)

71% (2014)