Summary statistics for acc_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     29,989        2014           0       2014       2014
       state |     29,989    27.90153    16.29439          1         56
     st_case |     29,989    279666.4    162915.5      10001     560131
      county |     29,989    92.85378    96.65305          0        820
      fatals |     29,989    1.089566    .3652865          1         10
-------------+---------------------------------------------------------
    a_crainj |     29,989           1           0          1          1
    a_region |     29,989    5.336023    2.343664          1         10
        a_ru |     29,989    1.513755    .5289276          1          3
     a_inter |     29,989    1.901531    .3655053          1          3
     a_relrd |     29,989    2.188436    1.437254          1          6
-------------+---------------------------------------------------------
    a_intsec |     29,989    1.766981    .4289473          1          3
    a_roadfc |     29,989    3.929441    1.619425          1          7
      a_junc |     29,989    1.847077     .547975          1          4
    a_mancol |     29,989    1.923138    1.336828          1          7
       a_tod |     29,989    1.524392    .5140875          1          3
-------------+---------------------------------------------------------
       a_dow |     29,989    1.419087    .4969869          1          3
        a_ct |     29,989    1.468305    .6151332          1          3
        a_lt |     29,989    1.885825    .3180292          1          2
        a_mc |     29,989    1.849812     .357262          1          2
     a_spcra |     29,989    1.724266    .4468911          1          2
-------------+---------------------------------------------------------
       a_ped |     29,989    1.838041    .3684197          1          2
     a_pedal |     29,989    1.975724     .153906          1          2
      a_roll |     29,989    1.751209    .4323198          1          2
    a_polpur |     29,989    1.989163    .1035385          1          2
    a_posbac |     29,989    2.282904    .8334703          1          3
-------------+---------------------------------------------------------
    a_d15_19 |     29,989    1.905932    .2919279          1          2
    a_d16_19 |     29,989    1.908566    .2882294          1          2
    a_d15_20 |     29,989    1.874921    .3308142          1          2
    a_d16_20 |     29,989    1.877522    .3278428          1          2
    a_d65pls |     29,989    1.814465    .3887372          1          2
-------------+---------------------------------------------------------
    a_d21_24 |     29,989    1.851079    .3560168          1          2
    a_d16_24 |     29,989     1.73617    .4407156          1          2
        a_rd |     29,989    1.463603    .4986818          1          2
        a_hr |     29,989    1.949415    .2191528          1          2
      a_dist |     29,989    1.901464    .2980432          1          2
-------------+---------------------------------------------------------
    a_drowsy |     29,989    1.975258    .1553416          1          2

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