Frequencies for first 10,000 rows of wt_cod variable in demo2006q2 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
     weight |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      4,972       49.72       49.72
         KG |      4,384       43.84       93.56
        LBS |        644        6.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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