60% (1995)

65% (1996)

66% (2005)

42% (1997)

60% (1997)

48% (1996)

62% (1996)

58% (1996)

60% (1996)

54% (1996)

39% (1997)

72% (2005)

58% (2000)

52% (2001)

85% (2001)

72% (1975)

60% (1994)

40% (1996)

76% (1994)

48% (1997)