Frequencies for first 10,000 rows of wt_cod variable in demo2010q2 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
     weight |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,175       71.75       71.75
         KG |      2,483       24.83       96.58
        LBS |        342        3.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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