54% (1994)

71% (1991)

57% (1996)

60% (1991)

56% (1991)

49% (1994)

64% (1991)

69% (1993)

68% (1995)

52% (1993)

55% (2005)

62% (1999)

35% (1999)

46% (1997)

56% (1991)

62% (2003)

50% (2002)