Frequencies for first 10,000 rows of pct017b050 variable in sf12000860us33 dataset :

   Military |
   quarters |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,992       99.92       99.92
          1 |          3        0.03       99.95
          2 |          3        0.03       99.98
          4 |          1        0.01       99.99
         12 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017