Frequencies for first 10,000 rows of prov1260 variable in pos1991 dataset :

technicians |
 - military |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,974       99.74       99.74
          1 |         17        0.17       99.91
          2 |          4        0.04       99.95
          3 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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