48% (1988)

63% (1986)

42% (1987)

42% (1988)

0% (1988)

80% (1994)

36% (1988)

63% (1992)

62% (1990)

56% (1988)

64% (1991)

36% (1992)

41% (1990)

41% (1994)

0% (1991)

59% (1988)

53% (1987)

62% (1993)

42% (1987)

59% (1989)