Frequencies for first 10,000 rows of mednurse variable in nhamcsopd2001 dataset :

med/nursing |
  asst seen |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,079       90.79       90.79
          1 |        921        9.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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