Frequencies for first 10,000 rows of sbunit_cnt variable in pos2014 dataset :

    Subunit |
      Count |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,220       12.20       12.20
          1 |         12        0.12       12.32
          2 |          3        0.03       12.35
          4 |          2        0.02       12.37
         74 |          1        0.01       12.38
          . |      8,762       87.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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