44% (2001)

61% (2001)

66% (2006)

72% (2005)

58% (1995)

68% (1999)

62% (2002)

68% (2003)

44% (2003)

51% (2002)

71% (2003)

50% (1998)

66% (1999)

66% (2002)

63% (2002)

67% (2005)

62% (2003)

60% (2000)

75% (2002)

74% (2005)