71% (1998)

63% (2004)

66% (1992)

45% (2000)

52% (1994)

52% (2002)

47% (1996)

33% (1999)

66% (1995)

55% (1996)

34% (1995)

70% (1995)

60% (1998)

40% (2000)

44% (1991)

75% (2001)

46% (1992)

61% (1991)

0% (1995)