Frequencies for first 10,000 rows of econds_2 variable in mort2006 dataset :

Sequence of |
  condition |
     within |
part/line 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,591       55.91       55.91
          2 |        982        9.82       65.73
          . |      3,427       34.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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