Frequencies for first 10,000 rows of rnlpn variable in namcs2009 dataset :

rn/lpn seen |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      7,177       71.77       71.77
        yes |      2,823       28.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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