72% (2005)

43% (2001)

58% (1995)

66% (2006)

65% (1999)

69% (1999)

51% (1998)

62% (2001)

61% (2002)

76% (2002)

68% (2003)

62% (2003)

63% (1999)

66% (2002)

52% (2002)

71% (2003)

68% (1997)

61% (2003)

61% (2000)

62% (2002)