Frequencies for first 10,000 rows of clia_lab_classification_cd_4 variable in posclia2018 dataset :

CLIA_LAB_CL |
ASSIFICATIO |
     N_CD_4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,593       55.93       55.93
          5 |          4        0.04       55.97
          . |      4,403       44.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Feb 2019