Frequencies for first 10,000 rows of gnrl_cntl_type_cd variable in pos2008 dataset :

    type of |
    control |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         92        0.92        0.92
         01 |      1,558       15.58       16.50
         02 |      1,012       10.12       26.62
         03 |      2,835       28.35       54.97
         04 |      1,868       18.68       73.65
         05 |        513        5.13       78.78
         06 |      1,059       10.59       89.37
         07 |        233        2.33       91.70
         08 |        207        2.07       93.77
         09 |         20        0.20       93.97
         10 |          6        0.06       94.03
         11 |         11        0.11       94.14
         12 |          9        0.09       94.23
         13 |         28        0.28       94.51
         1A |         53        0.53       95.04
         1B |        180        1.80       96.84
         1C |         22        0.22       97.06
         2A |          5        0.05       97.11
         2B |        288        2.88       99.99
         2C |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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