Frequencies for first 10,000 rows of stresexp variable in natl1988 dataset :

   Expanded |
   State of |
  Residence |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,728       97.28       97.28
          4 |          2        0.02       97.30
          5 |          1        0.01       97.31
         10 |         91        0.91       98.22
         11 |        111        1.11       99.33
         14 |          1        0.01       99.34
         19 |          1        0.01       99.35
         25 |         25        0.25       99.60
         30 |          1        0.01       99.61
         33 |          1        0.01       99.62
         34 |          1        0.01       99.63
         35 |          1        0.01       99.64
         42 |          2        0.02       99.66
         44 |         33        0.33       99.99
         49 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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