Frequencies for first 10,000 rows of reside variable in nhamcsed2001 dataset :

       does |
    patient |
  reside in |
       nurs |
   home/oth |
      inst? |      Freq.     Percent        Cum.
------------+-----------------------------------
      Blank |        491        4.91        4.91
        Yes |        326        3.26        8.17
         No |      8,896       88.96       97.13
    Unknown |        287        2.87      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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