55% (1995)

65% (1998)

32% (1992)

60% (1996)

60% (1989)

60% (1996)

70% (1998)

58% (1997)

68% (1993)

0% (1992)

63% (1991)

30% (1992)

43% (2002)

53% (1994)

55% (1992)

61% (1994)

59% (1999)

58% (1998)

52% (1990)

35% (1996)