Frequencies for first 10,000 rows of issuerid variable in bencs2014 dataset :

  Issuer ID |      Freq.     Percent        Cum.
------------+-----------------------------------
      12538 |        216        2.16        2.16
      17540 |        112        1.12        3.28
      21989 |         54        0.54        3.82
      38536 |         30        0.30        4.12
      42507 |        112        1.12        5.24
      44580 |      3,015       30.15       35.39
      44785 |        234        2.34       37.73
      45858 |         36        0.36       38.09
      46211 |         30        0.30       38.39
      46944 |        271        2.71       41.10
      73836 |      5,638       56.38       97.48
      74819 |        216        2.16       99.64
      84859 |         36        0.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 6 Oct 2016