45% (2000)

0% (2001)

0% (2003)

60% (2002)

76% (2000)

0% (2003)

60% (2007)

67% (2003)

0% (1996)

65% (2003)

52% (1997)

70% (2002)

0% (1995)

0% (2001)

82% (2002)

80% (2006)

0% (2004)

32% (1997)

0% (2003)

0% (2002)