Frequencies for first 10,000 rows of hosp_qual variable in psfhos dataset :

   Hospital |
    Quality |
  Indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,999       99.99       99.99
          6 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 24 Sep 2018