70% (2007)

70% (2009)

78% (1964)

72% (1992)

0% (1956)

66% (1989)

61% (2010)

68% (1971)

67% (1997)

0% (1967)

0% (1994)

46% (2009)

0% (1988)

60% (1961)

80% (1994)

70% (1986)

65% (1956)

71% (1986)

53% (1983)

0% (1960)