67% (2003)

69% (1999)

59% (2001)

66% (1997)

52% (2006)

63% (1999)

64% (2013)

72% (2011)

57% (2012)

55% (1998)

66% (2012)

59% (1997)

48% (2006)

62% (2002)

60% (2012)

63% (2003)

20% (1998)

50% (2002)

56% (1996)

62% (2007)