Frequencies for first 10,000 rows of gnrl_cntl_type_cd variable in pos2011 dataset :

    General |
    Type of |
    Control |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        102        1.02        1.02
         01 |      1,592       15.92       16.94
         02 |      1,022       10.22       27.16
         03 |      2,938       29.38       56.54
         04 |      1,563       15.63       72.17
         05 |        539        5.39       77.56
         06 |      1,188       11.88       89.44
         07 |        205        2.05       91.49
         08 |        213        2.13       93.62
         09 |         16        0.16       93.78
         10 |          8        0.08       93.86
         11 |         11        0.11       93.97
         12 |         10        0.10       94.07
         13 |         39        0.39       94.46
         1A |         51        0.51       94.97
         1B |        186        1.86       96.83
         1C |         24        0.24       97.07
         2A |          6        0.06       97.13
         2B |        285        2.85       99.98
         2C |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Apr 2019