60% (2000)

0% (1995)

30% (2000)

82% (2002)

40% (1997)

45% (2000)

0% (2001)

76% (2000)

0% (2003)

67% (2003)

0% (1996)

90% (2002)

80% (2006)

0% (2003)

60% (2001)

60% (2004)

65% (2003)

0% (2003)

32% (1997)

0% (2004)