Frequencies for s2_c1_3000 variable in hcris2552_96_1997 dataset :

 s2_c1_3000 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,157       80.83       80.83
          N |      1,182       18.53       99.36
          Y |         41        0.64      100.00
------------+-----------------------------------
      Total |      6,380      100.00

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