55% (2002)

52% (1995)

62% (1998)

62% (2012)

72% (1984)

65% (1990)

52% (1995)

63% (1985)

56% (1997)

64% (1987)

54% (1994)

40% (1984)

65% (1987)

62% (1987)

50% (1984)

52% (1998)

71% (1992)

66% (1985)

55% (1996)

60% (1989)