Summary statistics for acc_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     30,202        2013           0       2013       2013
       state |     30,202    27.79521    16.26865          1         56
     st_case |     30,202    278588.4    162648.5      10001     560075
      county |     30,202    91.78435    96.75105          0        999
      fatals |     30,202      1.0891     .357933          1          8
-------------+---------------------------------------------------------
    a_crainj |     30,202           1           0          1          1
    a_region |     30,202    5.292265    2.366093          1         10
        a_ru |     30,202    1.470532    .5012574          1          3
     a_inter |     30,202    1.884047    .3351298          1          3
     a_relrd |     30,202    2.198232    1.435041          1          6
-------------+---------------------------------------------------------
    a_intsec |     30,202    1.769817    .4251055          1          3
    a_roadfc |     30,202    3.922025       1.592          1          7
      a_junc |     30,202    1.850209    .5432929          1          4
    a_mancol |     30,202    1.913284    1.327699          1          7
       a_tod |     30,202    1.521588     .513982          1          3
-------------+---------------------------------------------------------
       a_dow |     30,202    1.415006    .4966135          1          3
        a_ct |     30,202    1.462685    .6134278          1          3
        a_lt |     30,202    1.882326    .3222274          1          2
        a_mc |     30,202    1.847361     .359645          1          2
     a_spcra |     30,202    1.710946    .4533304          1          2
-------------+---------------------------------------------------------
       a_ped |     30,202    1.842891    .3639093          1          2
     a_ped_f |     30,202    1.844547    .3623422          1          2
     a_pedal |     30,202    1.975002    .1561225          1          2
   a_pedal_f |     30,202      1.9753    .1552129          1          2
      a_roll |     30,202    1.750017    .4330103          1          2
-------------+---------------------------------------------------------
    a_polpur |     30,202     1.99053    .0968515          1          2
    a_posbac |     30,202    2.232302     .839218          1          3
    a_d15_19 |     30,202    1.908086    .2889099          1          2
    a_d16_19 |     30,202    1.910801     .285036          1          2
    a_d15_20 |     30,202    1.872492    .3335468          1          2
-------------+---------------------------------------------------------
    a_d16_20 |     30,202    1.875174    .3305272          1          2
    a_d65pls |     30,202    1.815972    .3875131          1          2
    a_d21_24 |     30,202    1.852427    .3546821          1          2
    a_d16_24 |     30,202    1.735878    .4408716          1          2
        a_rd |     30,202    1.450897    .4975913          1          2
-------------+---------------------------------------------------------
        a_hr |     30,202    1.949474    .2190322          1          2
      a_dist |     30,202    1.903218    .2956651          1          2
    a_drowsy |     30,202    1.976359    .1519299          1          2

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