Frequencies for first 10,000 rows of clia_lab_classification_cd_6 variable in posclia2018 dataset :

CLIA_LAB_CL |
ASSIFICATIO |
     N_CD_6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,840       38.40       38.40
          . |      6,160       61.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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