56% (2005)

75% (2005)

56% (2004)

70% (2004)

54% (2002)

62% (2006)

51% (2008)

76% (2002)

41% (2009)

33% (2001)

48% (2003)

53% (2009)

42% (2004)

43% (2007)

44% (2002)

38% (2001)

55% (2009)

47% (2010)

59% (2006)

50% (2005)