Frequencies for first 10,000 rows of priorterm variable in natl2011 dataset :

Prior Other |
Termination |
      s U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,019       70.19       70.19
          1 |      1,749       17.49       87.68
          2 |        706        7.06       94.74
          3 |        224        2.24       96.98
          4 |         75        0.75       97.73
          5 |         42        0.42       98.15
          6 |         17        0.17       98.32
          7 |          5        0.05       98.37
          9 |          2        0.02       98.39
         10 |          2        0.02       98.41
         12 |          3        0.03       98.44
         99 |        156        1.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015