73% (2008)

60% (2008)

72% (2007)

68% (2006)

32% (2008)

66% (2007)

61% (2009)

40% (2007)

59% (2008)

53% (2008)

67% (2006)

60% (2000)

67% (2002)

55% (2008)

63% (2002)

41% (2003)

62% (2003)

67% (2003)

53% (2007)

51% (2007)