Frequencies for first 10,000 rows of comstat8 variable in nhamcsed2009 dataset :

   for rx8, |
composition |
status code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        127        1.27        1.27
          2 |         17        0.17        1.44
          3 |          3        0.03        1.47
          . |      9,853       98.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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