Frequencies for first 10,000 rows of wt_cod variable in demo2006q3 dataset :

       Unit |
abbreviatio |
      n for |
  patient's |
     weight |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,678       66.78       66.78
        GMS |          1        0.01       66.79
         KG |      2,622       26.22       93.01
        LBS |        699        6.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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