48% (1996)

67% (2013)

28% (2004)

30% (2003)

61% (2003)

49% (2010)

72% (2004)

42% (2005)

73% (2010)

60% (2005)

52% (2010)

58% (1999)

64% (2007)

47% (2002)

57% (2002)

58% (2007)

69% (2008)

56% (2012)

50% (2007)

58% (2008)