71% (1998)

66% (1997)

73% (1995)

67% (1998)

68% (2001)

61% (1994)

100% (1998)

46% (1997)

57% (2000)

52% (1997)

55% (1997)

44% (1998)

54% (1998)

48% (1995)

42% (1999)

64% (1997)

61% (1997)

64% (2000)

46% (1996)

40% (1994)