Frequencies for first 10,000 rows of stresexp variable in natl1989 dataset :

   Expanded |
   State of |
  Residence |      Freq.     Percent        Cum.
------------+-----------------------------------
         01 |      9,748       97.48       97.48
         07 |          1        0.01       97.49
         10 |         54        0.54       98.03
         11 |        108        1.08       99.11
         19 |          5        0.05       99.16
         23 |          1        0.01       99.17
         25 |         39        0.39       99.56
         35 |          2        0.02       99.58
         37 |          1        0.01       99.59
         44 |         39        0.39       99.98
         45 |          1        0.01       99.99
         48 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016