65% (2006)

50% (2005)

61% (2009)

55% (2006)

44% (2010)

62% (2003)

40% (2008)

49% (2011)

54% (2005)

45% (2005)

42% (2008)

57% (2006)

55% (2008)

42% (2003)

55% (2006)

55% (2007)

44% (2010)

10% (2010)