46% (2010)

43% (2011)

55% (2007)

51% (2008)

10% (2009)

40% (2011)

35% (2009)

47% (2009)

60% (2010)

0% (2006)

57% (2008)

47% (2007)

45% (2010)

60% (2008)

50% (2009)

53% (2006)

60% (2007)

0% (2007)

75% (2007)

28% (2006)