Frequencies for first 10,000 rows of issuerid variable in rate2016 dataset :

  Issuer ID |      Freq.     Percent        Cum.
------------+-----------------------------------
      21989 |      1,624       16.24       16.24
      27357 |        154        1.54       17.78
      38344 |        138        1.38       19.16
      45858 |        552        5.52       24.68
      47904 |        576        5.76       30.44
      58670 |        138        1.38       31.82
      73836 |      6,818       68.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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