Frequencies for first 10,000 rows of scl_srvc_cd variable in pos1998 dataset :

srv: social |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,747       87.47       87.47
          0 |        117        1.17       88.64
          1 |        859        8.59       97.23
          2 |        210        2.10       99.33
          3 |         67        0.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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