Frequencies for adr_vndr_cd variable in snf_rpt2540_96_1996 dataset :

  automated |
desk review |
vendor code |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |        696        6.96        6.96
          3 |      5,008       50.04       57.00
          4 |      4,303       43.00      100.00
------------+-----------------------------------
      Total |     10,007      100.00

by Jean Roth , jroth@nber.org , 17 Feb 2018