Frequencies for first 10,000 rows of wt_cod variable in demo2010q4 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
     weight |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,981       69.81       69.81
         KG |      2,761       27.61       97.42
        LBS |        258        2.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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