75% (2005)

54% (2002)

56% (2005)

56% (2004)

71% (2004)

52% (2008)

41% (2009)

76% (2002)

52% (2009)

42% (2004)

64% (2006)

43% (2007)

48% (2003)

43% (2002)

32% (2001)

38% (2001)

47% (2010)

64% (2002)

64% (2009)

55% (2009)