Frequencies for last_rpt_sw variable in snf_rpt2540_96_1996 dataset :

last report |
     switch |      Freq.     Percent        Cum.
------------+-----------------------------------
          N |     10,002       99.95       99.95
          Y |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,007      100.00

by Jean Roth , jroth@nber.org , 17 Feb 2018