32% (1988)

68% (1970)

66% (1986)

40% (1985)

54% (1981)

54% (1983)

50% (1994)

60% (1988)

62% (1984)

54% (1991)

40% (1977)

50% (1986)

31% (1988)

53% (1988)

57% (1987)

47% (1984)

66% (1987)

38% (1985)

57% (1992)

53% (1980)