Frequencies for first 10,000 rows of hha_qlfyd_opt_spch_sw variable in pos2013 

        HHA |
  Qualified |
    For OPT |
  Indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,622       86.22       86.22
          N |      1,003       10.03       96.25
          Y |        375        3.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016