Frequencies for first 10,000 rows of clia_lab_classification_cd_9 variable in posclia2016 dataset : CLIA_LAB_CL | ASSIFICATIO | N_CD_9 | Freq. Percent Cum. ------------+----------------------------------- 0 | 2,361 23.61 23.61 5 | 2 0.02 23.63 . | 7,637 76.37 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 10 Jan 2017