Frequencies for first 10,000 rows of tc2s2 variable in h68f4 dataset :

     MULTUM |
THERAPEUTIC |
  SUB-CLASS |
 #2 FOR TC2 |      Freq.     Percent        Cum.
------------+-----------------------------------
         -1 |      9,989       99.89       99.89
        270 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Feb 2018