Frequencies for acct_pd variable in eobmfvt dataset :

 Accounting |
     Period |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         19        0.31        0.31
          2 |         32        0.52        0.84
          3 |        201        3.29        4.13
          4 |        142        2.33        6.45
          5 |        111        1.82        8.27
          6 |      1,268       20.77       29.04
          7 |         84        1.38       30.42
          8 |        171        2.80       33.22
          9 |        378        6.19       39.41
         10 |         78        1.28       40.69
         11 |         20        0.33       41.02
         12 |      3,601       58.98      100.00
------------+-----------------------------------
      Total |      6,105      100.00

by Jean Roth , jroth@nber.org , 15 Apr 2019