Frequencies for trnsmtl_num variable in rnl_rpt265_94_2009 dataset :

transmittal |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,445       29.54       29.54
          9 |      3,447       70.46      100.00
------------+-----------------------------------
      Total |      4,892      100.00

by Jean Roth , jroth@nber.org , 17 Feb 2018