23% (2000)

29% (2000)

36% (2001)

44% (2001)

42% (1997)

45% (1998)

38% (2002)

37% (2002)

51% (1998)

52% (2017)

70% (2002)

38% (2002)

20% (2001)

44% (2001)

65% (1988)

47% (1979)

32% (1998)

45% (1999)

13% (2002)

34% (2001)