Frequencies for first 10,000 rows of gnrl_cntl_type_cd variable in pos2005 dataset :

    type of |
    control |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         92        0.92        0.92
         01 |      1,831       18.31       19.23
         02 |      1,011       10.11       29.34
         03 |      2,845       28.45       57.79
         04 |      1,628       16.28       74.07
         05 |        526        5.26       79.33
         06 |      1,012       10.12       89.45
         07 |        234        2.34       91.79
         08 |        194        1.94       93.73
         09 |         17        0.17       93.90
         10 |          4        0.04       93.94
         11 |         12        0.12       94.06
         12 |          8        0.08       94.14
         13 |          9        0.09       94.23
         1A |         53        0.53       94.76
         1B |        179        1.79       96.55
         1C |         25        0.25       96.80
         2A |          5        0.05       96.85
         2B |        313        3.13       99.98
         2C |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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