72% (2005)

44% (2001)

66% (2006)

71% (2003)

76% (2002)

58% (1995)

69% (1999)

66% (1999)

62% (2003)

67% (2002)

68% (2003)

50% (1998)

62% (2001)

62% (2002)

62% (2003)

67% (1997)

52% (2002)

60% (2000)

61% (2002)

63% (2002)