Frequencies for trnsmtl_num variable in hcris2552_96_2011 dataset :

transmittal |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          2        5.88        5.88
          9 |          1        2.94        8.82
          H |          3        8.82       17.65
          M |          1        2.94       20.59
          N |         27       79.41      100.00
------------+-----------------------------------
      Total |         34      100.00

by Jean Roth , jroth@nber.org , 2 Sep 2018