Frequencies for first 10,000 rows of stusab variable in sf12010860us4 dataset :

 State/U.S. |
Abbreviatio |
   n (USPS) |      Freq.     Percent        Cum.
------------+-----------------------------------
         US |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017