Frequencies for first 10,000 rows of prov0250 variable in pos1994 dataset :

compliance: |
 membership |
 in network |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,902       99.02       99.02
          4 |         98        0.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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