Frequencies for first 10,000 rows of chow_sw variable in pos2012 dataset :

  Change of |
  Ownership |
     Switch |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,520       15.20       15.20
          N |      8,424       84.24       99.44
          Y |         56        0.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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