Frequencies for first 10,000 rows of clia_lab_classification_cd_1 variable in p CLIA_LAB_CL | ASSIFICATIO | N_CD_1 | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,318 93.18 93.18 5 | 305 3.05 96.23 10 | 26 0.26 96.49 . | 351 3.51 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016