53% (1998)

59% (2009)

66% (2007)

70% (2007)

54% (2007)

48% (2005)

60% (2003)

58% (2009)

48% (2007)

56% (2005)

30% (2001)

63% (2000)

65% (2006)

0% (2008)

40% (2004)

40% (2006)

20% (2006)

0% (2010)

52% (2009)

0% (2008)