85% (1999)

78% (2007)

78% (1987)

57% (2006)

71% (2005)

69% (1997)

67% (1998)

63% (1993)

62% (2018)

65% (2010)

59% (1999)

64% (2001)

58% (2016)

54% (2008)

50% (2000)

66% (2004)

60% (2012)