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dosewt ----------------------------------------------- dosage divided by weight
                  type:  numeric (float)

                 range:  [.01081081,.03333334]        units:  1.000e-09
         unique values:  9                    coded missing:  0 / 9

            tabulation:  Freq.  Value
                             1  .01081081
                             1  .01690141
                             1  .02033898
                             1  .02037037
                             1  .02142857
                             1  .02181818
                             1  .02340426
                             1  .0255814
                             1  .03333334


dist ------------------------------------------- Meters Covered Before Dropping
                  type:  numeric (int)

                 range:  [100,3000]                   units:  10
         unique values:  9                    coded missing:  0 / 9

            tabulation:  Freq.  Value
                             1  100
                             1  350
                             1  450
                             1  750
                             1  850
                             1  950
                             1  1150
                             1  1300
                             1  3000

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