60% (2004)

70% (1985)

0% (1986)

70% (1987)

45% (1972)

50% (1975)

0% (1992)

60% (1994)

0% (1993)

73% (1985)

32% (1978)

50% (1993)

53% (1995)

35% (1998)

45% (2012)

60% (1989)

57% (1961)

60% (1998)

57% (1990)

0% (1960)