Frequencies for adr_vndr_cd variable in hcris2552_96_1999 dataset :

  automated |
desk review |
vendor code |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |        706       11.37       11.37
          3 |      2,705       43.56       54.93
          4 |      2,799       45.07      100.00
------------+-----------------------------------
      Total |      6,210      100.00

by Jean Roth , jroth@nber.org , 7 Sep 2018