Frequencies for first 10,000 rows of hha_qlfyd_opt_spch_sw variable in pos2017 

        HHA |
  Qualified |
    For OPT |
  Indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,003       90.03       90.03
          N |        752        7.52       97.55
          Y |        245        2.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 9 Jan 2018