67% (2005)

59% (2013)

56% (2008)

55% (2003)

68% (2003)

65% (2001)

62% (2000)

37% (2000)

61% (2000)

63% (2004)

60% (2003)

61% (1998)

48% (1999)

53% (2002)

57% (2005)

59% (1998)

60% (2003)

80% (1998)

31% (1998)

50% (2001)