53% (1986)

59% (1987)

65% (2013)

72% (2013)

66% (1989)

70% (2011)

57% (2003)

67% (1989)

50% (1986)

59% (1989)

60% (2012)

49% (1987)

64% (1988)

70% (1986)

39% (1986)

64% (2000)

69% (1985)

69% (1997)

65% (1996)

70% (1988)