75% (2006)

64% (2007)

69% (2007)

59% (2005)

58% (2003)

56% (2001)

52% (2008)

56% (2004)

60% (2004)

61% (1998)

40% (2004)

0% (2007)

34% (2006)

0% (1998)

76% (2001)

0% (2002)

60% (2004)

54% (2001)

90% (2004)

50% (2002)