72% (2003)

55% (2004)

68% (1996)

66% (2001)

61% (2000)

56% (2010)

57% (2007)

64% (1997)

57% (1998)

58% (1999)

64% (1997)

51% (2005)

61% (2014)

60% (2010)

57% (2009)

54% (2007)

50% (1996)

50% (2012)

69% (2007)

55% (1996)