Frequencies for first 10,000 rows of psych_srvc_cd variable in pos2014 dataset 

  Services: |
      Adult |
  Inpatient |
Psychiatric |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,592       85.92       85.92
          0 |        914        9.14       95.06
          1 |        352        3.52       98.58
          2 |         79        0.79       99.37
          3 |         63        0.63      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016