69% (2004)

51% (2005)

45% (2003)

55% (2005)

0% (1997)

53% (2004)

50% (2005)

45% (2000)

51% (2005)

41% (2005)

62% (2003)

0% (1998)

0% (1997)

62% (1997)

63% (2000)

63% (2003)

0% (2001)

0% (2005)

40% (2009)

0% (2004)