Frequencies for first 10,000 rows of psych_srvc_cd variable in pos2000 dataset :

       srv: |
psychiatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,871       88.71       88.71
          0 |        645        6.45       95.16
          1 |        350        3.50       98.66
          2 |         85        0.85       99.51
          3 |         49        0.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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