Frequencies for first 10,000 rows of residnce variable in nhamcsed2010 dataset :

Patient residence |      Freq.     Percent        Cum.
------------------+-----------------------------------
            blank |        256        2.56        2.56
          unknown |        235        2.35        4.91
private residence |      9,057       90.57       95.48
     nursing home |        199        1.99       97.47
         homeless |         90        0.90       98.37
            other |        163        1.63      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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