70% (1994)

55% (1959)

40% (2003)

70% (1967)

60% (1964)

48% (1970)

56% (1964)

40% (1957)

80% (1961)

0% (1970)

50% (1990)

60% (1962)

30% (1961)

35% (1968)

65% (1989)

70% (1966)

50% (1967)

0% (1969)

50% (1953)

68% (1991)