Frequencies for first 10,000 rows of msa variable in namcs2001 dataset : msa or | non-msa | area | Freq. Percent Cum. ------------+----------------------------------- 1 | 8,541 85.41 85.41 2 | 1,459 14.59 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016