48% (2002)

45% (2002)

49% (2001)

20% (1999)

30% (2000)

70% (2002)

30% (1999)

37% (2000)

0% (2002)

0% (1999)

0% (2003)

32% (1998)

100% (1997)

52% (2005)

10% (1995)

54% (2002)