61% (2014)

77% (2002)

47% (2008)

55% (1997)

69% (2004)

63% (1995)

64% (1997)

52% (1992)

58% (1992)

44% (1995)

61% (1997)

28% (2004)

48% (1996)

28% (1989)

55% (1996)

53% (1997)

56% (1992)

47% (1998)

53% (1995)

42% (1990)