40% (1976)

53% (1981)

80% (1977)

48% (2010)

42% (1986)

78% (1977)

55% (1975)

41% (1992)

50% (1998)

0% (1974)

57% (2007)

0% (1969)

53% (1971)

0% (1978)

50% (1981)

0% (1972)

58% (1982)

46% (1996)

67% (1976)

0% (1995)