51% (2002)

67% (2001)

47% (2002)

42% (1998)

52% (1999)

44% (2000)

40% (1999)

42% (2003)

40% (2000)

30% (2003)

50% (1998)

39% (2001)

50% (2000)

50% (2000)

58% (1996)

28% (2003)

42% (1999)