61% (1973)

33% (1984)

51% (1970)

62% (1982)

0% (1998)

32% (1973)

60% (1995)

40% (1990)

35% (1972)

62% (2009)

0% (1987)

90% (1973)

40% (2000)

40% (1976)

62% (1978)

35% (1986)

43% (1998)

56% (1969)

52% (1968)

44% (1986)