77% (2009)

42% (1991)

30% (2005)

58% (2001)

60% (1998)

85% (2011)

80% (2013)

0% (2018)

65% (1977)

77% (1979)

59% (1982)

55% (1998)

65% (1979)

56% (1988)

65% (1974)

0% (2003)

50% (2017)

44% (1999)

78% (2008)

68% (1993)