81% (2004)

83% (1999)

77% (2020)

80% (2016)

68% (2003)

79% (1984)

79% (2006)

69% (1991)

80% (1983)

74% (2018)

72% (2008)

72% (2012)

50% (2003)

0% (1970)

82% (1996)

79% (2009)

62% (2006)

82% (2009)

0% (1970)

45% (1970)