Frequencies for fipscounty variable in zipmil_12q4 dataset : FIPS County | Code | Freq. Percent Cum. ------------+----------------------------------- 06. | 161 29.93 29.93 12. | 36 6.69 36.62 36. | 341 63.38 100.00 ------------+----------------------------------- Total | 538 100.00 by Jean Roth , jroth@nber.org , 4 Jan 2016 tail -n+3 /homes/data/zip/sas/2012/desc/zipmil_12q4/byvar/tab/fipscounty.log |