Frequencies for first 10,000 rows of econds_3 variable in mort2006 dataset :

Sequence of |
  condition |
     within |
part/line 3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,047       30.47       30.47
          2 |        965        9.65       40.12
          3 |        116        1.16       41.28
          . |      5,872       58.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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