Frequencies for first 10,000 rows of cdl_stat variable in vehicle dataset :

   cdl_stat |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,714       87.14       87.14
          1 |         35        0.35       87.49
          2 |          1        0.01       87.50
          3 |        318        3.18       90.68
          4 |        451        4.51       95.19
          5 |          8        0.08       95.27
          6 |          1        0.01       95.28
          7 |          2        0.02       95.30
          9 |        470        4.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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