Frequencies for first 10,000 rows of wt_cod variable in demo2007q2 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
     weight |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,393       63.93       63.93
         KG |      3,164       31.64       95.57
        LBS |        443        4.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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