0% (1968)

81% (1998)

48% (1986)

77% (1974)

65% (1985)

0% (1970)

53% (1979)

73% (1998)

50% (1966)

77% (2000)

45% (1996)

30% (1988)

57% (1978)

0% (1970)

60% (1980)

50% (1986)

48% (1992)

50% (1981)

55% (1966)

60% (1988)