Frequencies for first 10,000 rows of rnlpn variable in namcs2010 dataset :

rn/lpn seen |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      7,174       71.74       71.74
        yes |      2,826       28.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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