74% (1972)

72% (1971)

65% (1968)

65% (1970)

66% (1971)

63% (1971)

67% (1971)

60% (1997)

65% (1971)

56% (1968)

51% (1970)

0% (1998)

53% (1997)

0% (2020)

30% (1998)

33% (1969)

46% (1970)

0% (1976)

37% (1970)

40% (1987)