35% (2002)

0% (1962)

53% (1954)

58% (1998)

0% (1980)

47% (1970)

62% (2016)

26% (1968)

65% (1964)

62% (1971)

59% (1994)

40% (1969)

60% (1963)

58% (1992)

40% (1996)

0% (1992)

50% (1972)

10% (1969)

50% (1994)

18% (1970)