Frequencies for first 10,000 rows of stresexp variable in natl1987 dataset :

   Expanded |
   State of |
  Residence |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,787       97.87       97.87
          3 |          1        0.01       97.88
         10 |         61        0.61       98.49
         11 |         47        0.47       98.96
         18 |          1        0.01       98.97
         19 |          2        0.02       98.99
         25 |         41        0.41       99.40
         44 |         57        0.57       99.97
         48 |          1        0.01       99.98
         51 |          1        0.01       99.99
         60 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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