70% (2024)

72% (2007)

67% (2005)

75% (2002)

66% (2013)

65% (2017)

67% (2007)

61% (1988)

76% (2007)

62% (2013)

69% (2015)

65% (2015)

59% (1988)

59% (1999)

62% (2009)

69% (2009)

65% (2011)

75% (2012)

58% (2014)

64% (2013)