Frequencies for first 10,000 rows of issuerid variable in bencs2018 dataset :

  Issuer ID |      Freq.     Percent        Cum.
------------+-----------------------------------
      12538 |        180        1.80        1.80
      18756 |          9        0.09        1.89
      21989 |        243        2.43        4.32
      38344 |      1,742       17.42       21.74
      44580 |         68        0.68       22.42
      46944 |      2,957       29.57       51.99
      60075 |         54        0.54       52.53
      73301 |        815        8.15       60.68
      73836 |      3,752       37.52       98.20
      74819 |        180        1.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 Dec 2017