Frequencies for first 10,000 rows of emer_psych_srvc_cd variable in pos2011 dataset :

   Services |
  Provided: |
Psychiatric |
- Emergency |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,614       86.14       86.14
          0 |      1,231       12.31       98.45
          1 |         90        0.90       99.35
          2 |         43        0.43       99.78
          3 |         22        0.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Apr 2019