84% (2002)

73% (2000)

52% (2001)

67% (1997)

70% (1999)

64% (2004)

70% (1996)

72% (1999)

42% (1999)

58% (1999)

48% (2005)

61% (1999)

56% (1997)

71% (1999)

71% (1995)

0% (1998)

52% (2001)

54% (2006)

61% (2001)

55% (1997)