75% (2006)

48% (2001)

69% (2007)

59% (2005)

63% (2007)

59% (2004)

100% (2000)

56% (2004)

56% (2003)

31% (2006)

61% (1998)

0% (2007)

22% (2008)

40% (2004)

0% (2001)

52% (2008)

54% (2001)

0% (2007)

90% (2004)

76% (2001)