60% (1968)

50% (1974)

0% (1995)

60% (1991)

58% (1995)

0% (1983)

65% (2009)

60% (1977)

0% (1987)

0% (2013)

66% (1997)

90% (2004)

90% (1979)

50% (1988)

0% (1980)

50% (2003)

53% (1992)

62% (1982)

52% (1966)

0% (1988)