Frequencies for first 10,000 rows of resint variable in nhamcsed1998 dataset :

resident/in |
  tern seen |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,911       79.11       79.11
          1 |      2,089       20.89      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016