Frequencies for first 10,000 rows of sbunit_cnt variable in pos2012 dataset :

   Subunits |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,196       11.96       11.96
          1 |         11        0.11       12.07
          2 |          4        0.04       12.11
          4 |          2        0.02       12.13
          8 |          1        0.01       12.14
         74 |          1        0.01       12.15
          . |      8,785       87.85      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016