Frequencies for first 10,000 rows of priorterm variable in natl2003 dataset :

Prior Other |
Termination |
      s U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,645       66.45       66.45
          1 |      1,732       17.32       83.77
          2 |        654        6.54       90.31
          3 |        215        2.15       92.46
          4 |         84        0.84       93.30
          5 |         32        0.32       93.62
          6 |         19        0.19       93.81
          7 |          7        0.07       93.88
          8 |          4        0.04       93.92
          9 |          1        0.01       93.93
         10 |          1        0.01       93.94
         11 |          2        0.02       93.96
         99 |        604        6.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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