30% (1973)

50% (1941)

10% (1994)

54% (1937)

57% (1975)

60% (1998)

52% (1988)

0% (1978)

35% (1963)

30% (2000)

38% (1982)

53% (1981)

13% (1992)

50% (1951)

60% (1975)

40% (1977)

65% (1983)

50% (1951)

48% (1974)

0% (1977)