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

       SRV: |
PSYCHIATRIC |
 -EMERGENCY |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,626       86.26       86.26
          0 |      1,244       12.44       98.70
          1 |         81        0.81       99.51
          2 |         37        0.37       99.88
          3 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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