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

       LAST |
ACCIDENT-MO |
        NTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,297       52.97       52.97
          1 |        351        3.51       56.48
          2 |        290        2.90       59.38
          3 |        347        3.47       62.85
          4 |        421        4.21       67.06
          5 |        349        3.49       70.55
          6 |        345        3.45       74.00
          7 |        393        3.93       77.93
          8 |        342        3.42       81.35
          9 |        325        3.25       84.60
         10 |        352        3.52       88.12
         11 |        326        3.26       91.38
         12 |        314        3.14       94.52
         99 |        486        4.86       99.38
          . |         62        0.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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