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

  Services: |
 Vocational |
   Guidance |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,921       89.21       89.21
          0 |      1,065       10.65       99.86
          1 |          2        0.02       99.88
          2 |         11        0.11       99.99
          3 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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