Frequencies for first 10,000 rows of priout13 variable in h84 dataset :

 PID COV BY |
     HOLDER |
 OUTSIDE RU |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        131        1.31        1.31
          2 |      9,869       98.69      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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