Frequencies for first 10,000 rows of cmstata1 variable in nhamcsed2002 dataset :

composition |
status code |
for adverse |
    drug #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        346        3.46        3.46
          2 |         15        0.15        3.61
          3 |         40        0.40        4.01
          . |      9,599       95.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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