Frequencies for first 10,000 rows of famnum variable in morg87 dataset :

     Family |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,729       17.29       17.29
          1 |      8,064       80.64       97.93
          2 |        203        2.03       99.96
          3 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Mar 2017