65% (1984)

57% (2007)

62% (1980)

50% (1989)

56% (1970)

65% (1990)

60% (2017)

58% (2006)

59% (1992)

68% (1983)

64% (1982)

61% (2009)

65% (2010)

0% (2003)

0% (2000)

57% (2007)

0% (1975)

62% (2015)

20% (1988)

40% (1977)