Frequencies for first 10,000 rows of rnlpn variable in nhamcsed2005 dataset :

 registered |
  nurse/lpn |
       seen |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      1,259       12.59       12.59
        yes |      8,741       87.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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