Frequencies for first 10,000 rows of resint variable in nhamcsopd1997 dataset :

resident/in |
  tern seen |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,020       80.20       80.20
          1 |      1,980       19.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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