Frequencies for econds_4 variable in linkco1995us_unl dataset :

Sequence of |
  condition |
     within |
part/line 4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        582       82.20       82.20
          1 |         98       13.84       96.05
          2 |         20        2.82       98.87
          3 |          6        0.85       99.72
          4 |          2        0.28      100.00
------------+-----------------------------------
      Total |        708      100.00

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