58% (1985)

74% (1984)

59% (1988)

54% (1989)

67% (1987)

65% (1986)

32% (1994)

51% (1991)

0% (1991)

41% (1991)

62% (1985)

41% (1999)

48% (1995)

54% (1995)

74% (1994)

57% (1988)

48% (1988)

56% (1985)

53% (1992)

42% (1986)