Frequencies for first 10,000 rows of comstat3 variable in nhamcsed2009 dataset :

   for rx3, |
composition |
status code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,342       23.42       23.42
          2 |        497        4.97       28.39
          3 |         40        0.40       28.79
          . |      7,121       71.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016