76% (1964)

72% (2007)

66% (1964)

67% (1978)

53% (2002)

62% (1980)

0% (1994)

62% (1953)

32% (1998)

70% (1969)

59% (2004)

42% (1985)

75% (2005)

78% (2008)

48% (2001)

86% (2013)

0% (2001)

75% (1956)

79% (1963)

0% (1961)