61% (2003)

72% (2004)

78% (2003)

64% (2005)

70% (2001)

64% (2004)

59% (2001)

66% (2002)

56% (2000)

26% (1999)

63% (2002)

56% (2002)

70% (2002)

68% (2005)

50% (2004)

46% (2002)

68% (2002)