61% (2014)

77% (2002)

55% (1997)

48% (2008)

69% (2004)

63% (1994)

64% (1997)

48% (1996)

63% (1995)

45% (1995)

53% (1992)

53% (1997)

28% (2004)

56% (1996)

56% (1992)

56% (1992)

61% (1997)

27% (1989)

54% (1995)

40% (1990)