85% (1999)

78% (2007)

78% (1987)

57% (2006)

68% (1997)

63% (2001)

59% (1999)

72% (2005)

66% (1998)

62% (2018)

54% (2008)

63% (1993)

58% (2016)

65% (2010)

60% (2012)

50% (2000)

66% (2004)