55% (1994)

44% (1998)

70% (2003)

35% (2001)

61% (1998)

55% (2000)

40% (1997)

48% (1996)

42% (1997)

55% (1997)

35% (1996)

55% (2000)

30% (2001)

30% (1995)

0% (2000)