60% (1998)

62% (2002)

65% (2004)

21% (2004)

49% (2001)

31% (2003)

51% (2001)

43% (1999)

61% (2000)

59% (2000)

60% (1997)

47% (2000)

51% (2004)

43% (1998)

45% (2000)

50% (1999)

55% (2000)

61% (1996)

75% (2002)

61% (2003)