Frequencies for trnsmtl_num variable in rnl_rpt265_94_2006 dataset :

transmittal |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        759       17.52       17.52
          9 |      3,574       82.48      100.00
------------+-----------------------------------
      Total |      4,333      100.00

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