69% (2003)

47% (2013)

67% (2006)

62% (2008)

66% (2007)

62% (2007)

56% (2006)

60% (2005)

73% (2004)

61% (2007)

69% (2001)

52% (2009)

53% (2005)

63% (2006)

53% (2002)

61% (2011)

45% (2002)

55% (1998)

51% (2000)

57% (2000)