Frequencies for s2_c1_2602 variable in hcris2552_96_1997 dataset :

 s2_c1_2602 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,378       99.97       99.97
 01/01/1997 |          1        0.02       99.98
 11/01/1997 |          1        0.02      100.00
------------+-----------------------------------
      Total |      6,380      100.00

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