Frequencies for first 10,000 rows of rnlpn variable in namcs2007 dataset :

rn/lpn seen |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      6,588       65.88       65.88
        yes |      3,412       34.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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