Frequencies for first 10,000 rows of npnmw variable in namcs2008 dataset :

      nurse |
pract/midwi |
    fe seen |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,919       99.19       99.19
        yes |         81        0.81      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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