Frequencies for first 10,000 rows of urf_other variable in natl2006 dataset :

      Other |
    Medical |
       Risk |
Factors RFP |
697=f_urf_o |
   thermr U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,616       26.16       26.16
          2 |      7,240       72.40       98.56
          9 |        144        1.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015