75% (1964)

66% (1964)

75% (2005)

53% (2002)

72% (2007)

35% (1987)

70% (1970)

0% (1961)

49% (2001)

71% (1990)

79% (1963)

46% (2006)

64% (1970)

45% (1982)

64% (1955)

71% (1973)

59% (2004)

69% (2004)

67% (2004)

86% (2013)