56% (2014)

66% (1987)

58% (2001)

66% (1992)

64% (1987)

59% (1989)

46% (1997)

59% (2007)

54% (1987)

61% (1989)

60% (1986)

52% (1995)

65% (1988)

54% (1991)

58% (2006)

59% (1986)

53% (1995)

55% (1985)

45% (1984)

54% (1994)