52% (2012)

50% (1972)

0% (1991)

60% (1982)

0% (1960)

0% (1974)

0% (1978)

62% (1986)

53% (1975)

0% (2009)

65% (2008)

80% (1958)

80% (1987)

70% (2000)

60% (1985)

80% (1994)

0% (1951)

74% (1979)

54% (1996)

70% (1993)