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

       Last |
Accident,et |
     c-Year |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,959       39.59       39.59
         76 |          1        0.01       39.60
         77 |        406        4.06       43.66
         78 |      1,172       11.72       55.38
         79 |      2,178       21.78       77.16
         80 |      1,538       15.38       92.54
         99 |        746        7.46      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016