Frequencies for first 10,000 rows of comstat5 variable in nhamcsed1997 dataset :

composition |
status code |
for drug #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        381        3.81        3.81
          2 |         43        0.43        4.24
          3 |         14        0.14        4.38
          . |      9,562       95.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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