47% (2005)

67% (2000)

58% (1997)

48% (1997)

68% (2002)

48% (2001)

38% (2003)

55% (1997)

36% (2003)

80% (1983)

56% (2000)

53% (1996)

50% (1999)

0% (1989)

52% (1999)

55% (2003)

0% (1955)

40% (1996)

0% (2003)

45% (2000)