85% (1999)

78% (1987)

79% (2007)

69% (1997)

57% (2006)

62% (2018)

63% (1993)

67% (1998)

59% (1999)

72% (2005)

55% (2008)

57% (2016)

64% (2001)

65% (2010)

65% (2004)

64% (2012)

50% (2000)