61% (2003)

63% (2005)

58% (2000)

69% (2007)

54% (2002)

66% (2002)

64% (2004)

57% (1994)

45% (2002)

47% (1999)

38% (2004)

0% (1994)

0% (1995)

0% (1998)

50% (2004)