29% (1986)

36% (2012)

42% (1977)

0% (1981)

0% (1968)

0% (1978)

0% (1951)

60% (2002)

0% (1979)

80% (1976)

40% (2005)

0% (2000)

100% (2008)

60% (1982)

10% (2014)

50% (1988)

48% (2003)

73% (1981)

0% (2009)

60% (1950)