Frequencies for first 10,000 rows of clia_lab_classification_cd_3 variable in p CLIA_LAB_CL | ASSIFICATIO | N_CD_3 | Freq. Percent Cum. ------------+----------------------------------- 0 | 6,437 64.37 64.37 5 | 8 0.08 64.45 . | 3,555 35.55 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016