Frequencies for first 10,000 rows of comstat5 variable in nhamcsed1995 dataset :

composition |
status code |
for drug #5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        329        3.29        3.29
          2 |         33        0.33        3.62
          3 |         15        0.15        3.77
          . |      9,623       96.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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