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I.    File Organization:

    The files in the estcomp89 directory contain comparisons between 
    model-based and Census estimates for 1989.  There is exactly one 
    FTP file for each table in the "Comparisons between model-based 
    and Census estimates for 1989" group.

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II.   File Names

        Filename       Statistic

        c_total.dat    People of all ages in poverty
        c_0_17.dat     People under age 18 in poverty
        c_5_17.dat     Related children 5-17 in families in poverty
        c_median.dat   Median household income

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III.  Record Layout for Comparisons between model-based and Census estimates
      for 1989 Files

      Position   Variable

         1-  4   Number of counties
         6- 14   Population (or Housing Units for median household income file)
        16- 21   Mean estimate -- Census
        23- 28   Mean estimate -- Model
        30- 34   Mean relative width of 90% confidence interval -- Census
        36- 40   Mean relative width of 90% confidence interval -- Model
        42- 46   Mean relative difference from Census -- Percent
        48- 52   Mean relative difference from Census -- Absolute percent
        54-113   County characteristic

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