41% (1988)

42% (1959)

52% (1981)

50% (1972)

56% (1974)

80% (1976)

35% (1998)

43% (1975)

43% (1976)

0% (1975)

40% (1959)

60% (1950)

0% (1973)

0% (1954)

45% (1984)

60% (1959)

0% (1997)

0% (1997)

0% (1957)

48% (2003)