60% (2009)

62% (2007)

41% (2011)

69% (2007)

49% (2011)

70% (2007)

49% (2013)

57% (2007)

72% (2012)

48% (2008)

66% (2009)

54% (1996)

61% (2009)

79% (2011)

41% (2008)

61% (1997)

55% (2002)

60% (1994)

44% (2007)

69% (1993)