Frequencies for first 10,000 rows of econds_19 variable in linkco1991us_num dataset :

Sequence of |
  condition |
     within |
  part/line |
         19 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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