Frequencies for ctrl_type variable in addr2552_10 dataset :

    Control |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        639        9.73        9.73
          2 |      2,518       38.33       48.06
          3 |         32        0.49       48.55
          4 |      1,687       25.68       74.23
          5 |        225        3.43       77.65
          6 |        127        1.93       79.59
          7 |         44        0.67       80.26
          8 |         99        1.51       81.76
          9 |        423        6.44       88.20
         10 |        263        4.00       92.21
         11 |        360        5.48       97.69
         12 |         75        1.14       98.83
         13 |         77        1.17      100.00
------------+-----------------------------------
      Total |      6,569      100.00

by Jean Roth , jroth@nber.org , 23 Aug 2018