Frequencies for first 10,000 rows of psych_unit_sw variable in pos2010 dataset :

PSYCHIATRIC |
       UNIT |
  INDICATOR |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,688       96.88       96.88
          Y |        312        3.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017