Frequencies for first 10,000 rows of clia_lab_classification_cd_7 variable in posclia2018 dataset :

CLIA_LAB_CL |
ASSIFICATIO |
     N_CD_7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,139       31.39       31.39
          5 |          3        0.03       31.42
          . |      6,858       68.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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