Frequencies for spec_use variable in vehnit dataset :

SPECIAL USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,316       99.10       99.10
          1 |          1        0.08       99.17
          2 |          1        0.08       99.25
          5 |          7        0.53       99.77
          7 |          2        0.15       99.92
          9 |          1        0.08      100.00
------------+-----------------------------------
      Total |      1,328      100.00

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