Frequencies for spec_use variable in vehnit dataset :

SPECIAL USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,108       99.28       99.28
          3 |          1        0.09       99.37
          5 |          4        0.36       99.73
          6 |          1        0.09       99.82
          9 |          2        0.18      100.00
------------+-----------------------------------
      Total |      1,116      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016