Frequencies for first 10,000 rows of mednurse variable in nhamcsopd2002 dataset :

med/nursing |
  asst seen |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,077       90.77       90.77
          1 |        923        9.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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