Frequencies for first 10,000 rows of wt_cod variable in demo2012q2 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
     weight |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,364       73.64       73.64
         KG |      2,599       25.99       99.63
        LBS |         37        0.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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