50% (1988)

77% (1986)

59% (1999)

60% (1975)

45% (1988)

68% (1973)

67% (1975)

60% (1994)

73% (1986)

0% (1988)

60% (1990)

33% (1987)

50% (1992)

53% (1988)

50% (1993)

0% (1977)

0% (1991)

60% (1992)

0% (1975)

40% (1995)