70% (1980)

65% (2000)

90% (2008)

63% (2018)

70% (1976)

80% (2017)

60% (2002)

73% (1999)

65% (2013)

74% (1987)

80% (2008)

63% (1987)

59% (2011)

68% (1991)

100% (1987)

59% (1991)

73% (2017)

62% (2004)

75% (1992)

69% (2018)