Frequencies for first 10,000 rows of otermm20 variable in natl1980 dataset :

  Number of |
      Other |
Termination |
 s After 20 |
      Weeks |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,770       97.70       97.70
          1 |        205        2.05       99.75
          2 |         16        0.16       99.91
          3 |          3        0.03       99.94
          4 |          1        0.01       99.95
         99 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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