Frequencies for first 10,000 rows of ssa_state_cd variable in pos2000 dataset : state code | (ssa) | Freq. Percent Cum. ------------+----------------------------------- 01 | 1,525 15.25 15.25 02 | 204 2.04 17.29 03 | 1,118 11.18 28.47 04 | 1,614 16.14 44.61 05 | 5,539 55.39 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017