Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     43,945        2011           0       2011       2011
     st_case |     43,945    279697.4    162493.4      10001     560121
      veh_no |     43,945     1.40983    .7764241          1         26
      a_body |     43,945    2.946023    2.318105          1          9
      a_imp1 |     43,945    2.734668    1.441847          1          7
-------------+---------------------------------------------------------
      a_imp2 |     43,945    3.235294    1.881605          1          7
     a_vroll |     43,945    1.818864    .3851348          1          2
     a_lic_s |     43,945    1.465491    .9703636          1          4
     a_lic_c |     43,945    1.181158    .4551823          1          3
     a_cdl_s |     43,945    1.906133    .3783882          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |     43,945    3.701172    .8707135          1          4
     a_spveh |     43,945    1.793082    .4051006          1          2
      a_sbus |     43,945    2.995381    .0951756          1          3
    a_mod_yr |     43,945    2160.028    1114.737       1915       9999
     a_drdis |     43,945    1.929799     .255489          1          2
-------------+---------------------------------------------------------
     a_drdro |     43,945    1.983866    .1259915          1          2

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