70% (2005)

72% (1999)

67% (1984)

55% (2014)

50% (1985)

0% (1987)

73% (1989)

78% (1990)

63% (1989)

67% (1983)

69% (2002)

58% (2017)

0% (2001)

85% (2011)

78% (2003)

77% (1970)

0% (2006)

63% (2015)

0% (2005)

66% (1997)