75% (2006)

69% (2007)

59% (2005)

48% (2001)

56% (2004)

63% (2007)

56% (2003)

52% (2008)

59% (2004)

31% (2006)

76% (2001)

54% (2001)

22% (2008)

0% (2002)

100% (2000)

61% (1998)

0% (2007)

0% (2001)

60% (2004)

40% (2004)