Frequencies for first 10,000 rows of nursepr variable in namcs1995 dataset :

      nurse |
practitione |
     r seen |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,920       99.20       99.20
          1 |         80        0.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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