Frequencies for first 10,000 rows of pt_ofsite_rsdnt_sw variable in pos2009 dataset :

  SRV: PHYS |
THER-OFFSIT |
E-RESIDENTS |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,657       76.57       76.57
          N |      2,208       22.08       98.65
          Y |        135        1.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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