46% (1999)

52% (2004)

59% (1998)

58% (2004)

51% (2001)

49% (2001)

47% (2000)

42% (1999)

63% (2002)

42% (1998)

44% (2000)

61% (1997)

62% (2000)

60% (2000)

57% (2003)

50% (1999)

61% (1996)

29% (2003)

61% (2003)

59% (1999)