Frequencies for first 10,000 rows of prov3550 variable in pos1992 dataset :

    current |
survey ever |
   swingbed |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,738       87.38       87.38
          N |      1,104       11.04       98.42
          Y |        158        1.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016