Frequencies for first 10,000 rows of stresexp variable in natlterr2001 dataset :

   Expanded |
   State of |
  Residence |      Freq.     Percent        Cum.
------------+-----------------------------------
          6 |          1        0.01        0.01
         10 |          3        0.03        0.04
         11 |          1        0.01        0.05
         25 |          1        0.01        0.06
         31 |          1        0.01        0.07
         33 |          1        0.01        0.08
         37 |          1        0.01        0.09
         53 |      9,975       99.75       99.84
         54 |          5        0.05       99.89
         58 |          1        0.01       99.90
         60 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015