67% (1995)

40% (1974)

65% (1979)

0% (1986)

38% (1972)

59% (1976)

70% (1993)

36% (1976)

43% (1969)

65% (1970)

34% (1989)

56% (1970)

80% (1991)

67% (1970)

35% (1979)

20% (1992)

63% (1977)

0% (1994)

56% (1975)

60% (1973)