54% (2003)

43% (2001)

44% (2002)

57% (2003)

59% (1999)

42% (2003)

52% (2004)

45% (2003)

66% (2005)

28% (2001)

57% (2000)

40% (2001)

37% (2004)

36% (2002)

53% (2002)

56% (2004)

44% (2000)

48% (2005)

37% (2000)

55% (2005)