0% (1981)

50% (1971)

0% (1951)

0% (2010)

30% (1978)

50% (1971)

50% (1980)

0% (1970)

94% (1971)

50% (1985)

0% (1953)

73% (1956)

60% (1968)

50% (1972)

0% (1994)

30% (2007)

0% (1996)

0% (1970)

0% (1978)

50% (2003)