Frequencies for first 10,000 rows of trinw13x variable in h84 dataset :

 PID COV BY |
TRICARE/CHA |
    MPVA AT |
 INT-EDITED |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        218        2.18        2.18
          2 |      9,782       97.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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