67% (1964)

61% (1995)

0% (1975)

0% (2013)

80% (1988)

0% (1999)

40% (2005)

0% (1979)

59% (1983)

0% (1976)

80% (1984)

78% (1986)

55% (1957)

70% (1983)

0% (1985)

50% (1998)

0% (1989)

0% (1993)

70% (1954)

0% (1982)