60% (1983)

60% (1989)

70% (1958)

55% (1979)

52% (1994)

50% (2004)

58% (1984)

80% (1954)

90% (1963)

0% (1991)

55% (1986)

0% (1950)

64% (2000)

67% (1978)

23% (1996)

30% (1989)

60% (1992)

60% (1982)

50% (1994)

50% (1979)