Frequencies for first 10,000 rows of otermm20 variable in natl1987 dataset :

  Number of |
      Other |
Termination |
 s After 20 |
      Weeks |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,818       98.18       98.18
          1 |        160        1.60       99.78
          2 |         12        0.12       99.90
          3 |          1        0.01       99.91
          5 |          1        0.01       99.92
         99 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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