Frequencies for ctrl_type variable in addr2552_96 dataset :

    Control |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        881        9.79        9.79
          2 |      3,332       37.03       46.82
          3 |         18        0.20       47.02
          4 |      2,090       23.23       70.25
          5 |        226        2.51       72.76
          6 |        307        3.41       76.17
          7 |         10        0.11       76.28
          8 |        173        1.92       78.21
          9 |        753        8.37       86.57
         10 |        369        4.10       90.68
         11 |        586        6.51       97.19
         12 |        131        1.46       98.64
         13 |        121        1.34       99.99
          . |          1        0.01      100.00
------------+-----------------------------------
      Total |      8,998      100.00

by Jean Roth , jroth@nber.org , 6 Sep 2018