Frequencies for first 10,000 rows of comstat5 variable in nhamcsed2001 dataset :

composition |
status code |
for drug #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        496        4.96        4.96
          2 |         53        0.53        5.49
          3 |         41        0.41        5.90
          . |      9,410       94.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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