84% (2018)

59% (2009)

80% (2001)

65% (2002)

49% (2007)

72% (1997)

60% (2011)

62% (2009)

70% (1994)

63% (1994)

72% (1987)

42% (2005)

75% (2009)

55% (1990)

58% (1995)

59% (1996)

58% (2013)

86% (2018)

49% (2008)

57% (2000)