Frequencies for first 10,000 rows of wt_cod variable in demo2005q3 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
     weight |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,486       64.86       64.86
        GMS |          2        0.02       64.88
         KG |      2,607       26.07       90.95
        LBS |        905        9.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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