53% (1998)

66% (2007)

59% (2009)

56% (2005)

0% (2010)

70% (2007)

49% (2007)

49% (2005)

20% (2006)

60% (2003)

58% (2009)

52% (2009)

40% (2001)

40% (2004)

0% (2008)

63% (2000)

20% (2008)

40% (2006)

65% (2006)

53% (2007)