56% (2004)

53% (2006)

73% (1996)

52% (1997)

0% (1997)

41% (1994)

0% (1998)

0% (2000)

40% (1995)

70% (2001)

80% (1998)

75% (1994)

0% (2002)

50% (2004)

0% (1999)

0% (1997)