47% (1985)

65% (1986)

65% (1994)

70% (2017)

52% (2002)

63% (1997)

60% (1982)

58% (1980)

53% (1998)

70% (2015)

59% (1969)

40% (2008)

62% (2001)

20% (1995)

30% (1999)

0% (1997)

72% (1985)

39% (1998)

45% (1992)

50% (2000)