Frequencies for first 10,000 rows of residnce variable in nhamcsed2007 dataset :

patient residence |      Freq.     Percent        Cum.
------------------+-----------------------------------
            blank |        278        2.78        2.78
          unknown |        177        1.77        4.55
private residence |      9,030       90.30       94.85
     nursing home |        207        2.07       96.92
other institution |         98        0.98       97.90
  other residence |         95        0.95       98.85
         homeless |        115        1.15      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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