85% (1999)

78% (1987)

78% (2007)

68% (1997)

57% (2006)

62% (1993)

55% (2008)

63% (2018)

64% (2001)

71% (2005)

67% (1998)

58% (2016)

59% (1999)

65% (2010)

65% (2004)

64% (2012)

50% (2000)