Frequencies for first 10,000 rows of wt_cod variable in demo2004q3 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
     weight |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,202       62.02       62.02
        GMS |          2        0.02       62.04
         KG |      2,555       25.55       87.59
        LBS |      1,241       12.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Dec 2015