Frequencies for last_yr variable in vehicle dataset :

       LAST |
ACCIDENT-YE |
         AR |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        539       70.55       70.55
         92 |         80       10.47       81.02
         93 |         21        2.75       83.77
         94 |         42        5.50       89.27
         95 |         27        3.53       92.80
         99 |         53        6.94       99.74
          . |          2        0.26      100.00
------------+-----------------------------------
      Total |        764      100.00

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