65% (1993)

69% (2009)

73% (2004)

65% (2015)

70% (2012)

66% (2013)

69% (2009)

74% (2001)

58% (2014)

66% (2000)

65% (2007)

60% (2014)

69% (2008)

65% (1996)

67% (1996)

62% (2018)

55% (2005)

64% (2013)

65% (2017)

45% (1987)