Frequencies for first 10,000 rows of comstat1 variable in nhamcsed2001 dataset :

composition |
status code |
for drug #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,206       62.06       62.06
          2 |      1,013       10.13       72.19
          3 |        221        2.21       74.40
          . |      2,560       25.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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