71% (2006)

54% (2006)

44% (1999)

69% (2005)

54% (2010)

72% (1966)

81% (2017)

72% (2000)

73% (1988)

85% (2020)

75% (2003)

65% (2002)

53% (1996)

58% (1988)

74% (2007)

89% (2012)

78% (2003)

51% (2003)

74% (2007)

83% (2010)