Frequencies for first 10,000 rows of rnlpn variable in nhamcsopd2010 dataset :

rn/lpn seen |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      4,856       48.56       48.56
        yes |      5,144       51.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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