20% (1993)

37% (2007)

52% (1996)

45% (1992)

42% (2004)

52% (1997)

57% (1996)

50% (1995)

90% (1996)

50% (1996)

40% (1992)

54% (1995)

45% (1996)

44% (1997)

52% (1995)

30% (1997)

75% (1994)

46% (1996)

30% (1994)

48% (1998)