Frequencies for first 10,000 rows of famid13 variable in h84 dataset :

     FAMILY |
 IDENTIFIER |
   (STUDENT |
 MERGED IN) |      Freq.     Percent        Cum.
------------+-----------------------------------
          A |      9,597       95.97       95.97
          B |        351        3.51       99.48
          C |         37        0.37       99.85
          D |         12        0.12       99.97
          E |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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