Frequencies for first 10,000 rows of bendif13 variable in h84 dataset :

 DIFFICULTY |
BENDING/STO |
      OPING |      Freq.     Percent        Cum.
------------+-----------------------------------
         -8 |          2        0.02        0.02
         -1 |      8,973       89.73       89.75
          1 |        279        2.79       92.54
          2 |        356        3.56       96.10
          3 |        233        2.33       98.43
          4 |        157        1.57      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Feb 2018