Frequencies for first 10,000 rows of wt_cod variable in demo2006q1 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
     weight |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,556       55.56       55.56
         KG |      3,661       36.61       92.17
        LBS |        783        7.83      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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