Frequencies for first 10,000 rows of clia_lab_classification_cd_5 variable in p CLIA_LAB_CL | ASSIFICATIO | N_CD_5 | Freq. Percent Cum. ------------+----------------------------------- 0 | 4,426 44.26 44.26 5 | 4 0.04 44.30 . | 5,570 55.70 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016