39% (1999)

47% (2002)

51% (2000)

66% (2001)

51% (2003)

45% (1998)

42% (1998)

51% (2002)

44% (2000)

41% (2003)

39% (2001)

51% (1996)

51% (1999)

40% (2000)

50% (2000)

28% (2003)

30% (2003)

42% (1999)