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

patient residence |      Freq.     Percent        Cum.
------------------+-----------------------------------
private residence |      9,123       91.23       91.23
     nursing home |        174        1.74       92.97
other institution |        114        1.14       94.11
  other residence |         89        0.89       95.00
         homeless |         60        0.60       95.60
          unknown |        162        1.62       97.22
            blank |        278        2.78      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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