Frequencies for first 10,000 rows of priorterm variable in natlterr2003 dataset :

Prior Other |
Termination |
      s U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,559       85.59       85.59
          1 |      1,082       10.82       96.41
          2 |        254        2.54       98.95
          3 |         73        0.73       99.68
          4 |         18        0.18       99.86
          5 |          8        0.08       99.94
          6 |          4        0.04       99.98
          7 |          1        0.01       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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