67% (2009)

57% (1983)

40% (1987)

66% (2010)

61% (2013)

68% (2009)

67% (1995)

68% (2004)

63% (2018)

63% (2016)

69% (1982)

35% (1994)

62% (1979)

67% (2006)

63% (1993)

60% (2008)

57% (2017)

65% (1978)

74% (1979)

67% (1976)