Frequencies for first 10,000 rows of otherphy variable in nhamcsopd1997 dataset :

      other |
  physician |
       seen |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,777       97.77       97.77
          1 |        223        2.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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