Frequencies for first 10,000 rows of op_psych_srvc_cd variable in pos2018 dataset :

  Services: |
 Outpatient |
Psychiatric |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,560       85.60       85.60
          0 |      1,261       12.61       98.21
          1 |        118        1.18       99.39
          2 |         24        0.24       99.63
          3 |         37        0.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Feb 2019