54% (2004)

49% (2005)

47% (2005)

55% (2007)

40% (2004)

38% (2004)

54% (2005)

40% (2011)

64% (2006)

10% (2004)

40% (2001)

35% (2003)

58% (2006)

37% (2002)

56% (2007)

59% (1996)

59% (2001)

44% (2004)

56% (1998)

34% (2006)