Frequencies for first 10,000 rows of prov3300 variable in pos2010 dataset :

  SRV: PHYS |
EXTENDER-OF |
FSITE-RESID |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,641       76.41       76.41
          N |      2,206       22.06       98.47
          Y |        153        1.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017