60% (1994)

34% (1994)

42% (1988)

0% (1991)

50% (1997)

60% (1998)

52% (1999)

50% (2001)

55% (1994)

49% (2000)

42% (1995)

44% (1997)

34% (1994)

52% (1997)

50% (1996)

56% (1989)

32% (1994)

68% (1990)

48% (1999)

74% (1999)