46% (2013)

69% (2003)

67% (2006)

66% (2007)

56% (2006)

63% (2006)

70% (2001)

61% (2008)

61% (2011)

54% (2005)

55% (1998)

57% (1996)

43% (2002)

62% (2001)

52% (2000)

53% (2002)

50% (2000)

73% (2004)

63% (2007)

60% (2005)