62% (1995)

51% (1991)

64% (1997)

73% (2012)

39% (1990)

44% (1994)

55% (1993)

43% (1990)

40% (1998)

36% (1997)

38% (1998)

43% (1999)

67% (1999)

70% (1997)

50% (1995)

45% (2000)

56% (1999)

30% (1992)

67% (1987)

49% (1998)