Frequencies for s2_c1_2602 variable in hcris2552_96_2002 dataset :

 s2_c1_2602 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,194       99.94       99.94
   01/01/02 |          1        0.02       99.95
   07/01/02 |          1        0.02       99.97
   10/01/01 |          1        0.02       99.98
   10/01/02 |          1        0.02      100.00
------------+-----------------------------------
      Total |      6,198      100.00

by Jean Roth , jroth@nber.org , 8 Sep 2018