70% (1986)

48% (1992)

0% (1992)

65% (1973)

0% (2000)

57% (1989)

53% (1990)

57% (1973)

0% (2012)

71% (1997)

100% (1975)

60% (1975)

50% (1982)

63% (2002)

0% (1981)

58% (1993)

42% (1973)

79% (1974)

59% (1973)

58% (1985)