70% (1993)

30% (1995)

46% (1992)

0% (1994)

56% (1998)

44% (1993)

60% (1995)

44% (2003)

45% (1996)

71% (1999)

30% (1998)

50% (1998)

0% (1992)

51% (2002)

46% (1999)

51% (1992)

52% (1997)

60% (1994)

65% (2001)

52% (1996)