40% (2013)

71% (2011)

62% (1969)

61% (2007)

0% (2002)

0% (1992)

20% (1992)

0% (1974)

20% (2005)

0% (1977)

50% (2001)

0% (1987)

47% (2007)

60% (1985)

0% (2008)

55% (2006)

45% (1996)

40% (1957)

52% (1957)

0% (1970)