49% (1986)

54% (1987)

48% (1986)

63% (1988)

73% (2013)

64% (2013)

65% (1996)

64% (2002)

72% (2011)

65% (2000)

72% (1988)

66% (1989)

62% (1996)

59% (2002)

56% (2003)

71% (1985)

53% (1989)

67% (1989)

43% (1986)

70% (1997)