61% (2014)

77% (2002)

47% (2008)

69% (2004)

63% (1997)

62% (1994)

63% (1995)

55% (1997)

52% (1992)

45% (1995)

28% (2004)

61% (1997)

56% (1992)

56% (1996)

47% (1996)

52% (1997)

27% (1989)

40% (1990)

51% (1998)

54% (1995)