62% (2014)

46% (1996)

40% (1990)

28% (2004)

47% (2008)

77% (2002)

55% (1996)

27% (1989)

61% (1997)

62% (1994)

63% (1995)

68% (2004)

63% (1997)

52% (1992)

56% (1992)

55% (1997)

52% (1997)

54% (1995)

45% (1995)

57% (1996)