Frequencies for last_rpt_sw variable in hcris2552_96_1998 dataset :

last report |
     switch |      Freq.     Percent        Cum.
------------+-----------------------------------
          N |      6,198       97.96       97.96
          Y |        129        2.04      100.00
------------+-----------------------------------
      Total |      6,327      100.00

by Jean Roth , jroth@nber.org , 6 Sep 2018