Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     58,877        2003           0       2003       2003
      veh_no |     58,877    1.458855    1.045435          1         45
     st_case |     58,877    274254.9    161274.9      10001     560141
      a_body |     58,877    2.622127    2.129779          1          9
      a_imp1 |     58,877    2.676886    1.328616          1          7
-------------+---------------------------------------------------------
      a_imp2 |     58,877    2.724256    1.370644          1          7
     a_vroll |     58,877    1.812796    .3900784          1          2
     a_lic_s |     58,877    1.356234    .8225244          1          4
     a_lic_c |     58,877    1.183739    .4622496          1          3
     a_cdl_s |     58,877    1.906806    .3811146          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |     58,877    3.822715    .6843477          1          4
     a_spveh |     58,877    1.794657    .4039557          1          2
      a_sbus |     58,877    2.995601    .0906548          1          3
    a_mod_yr |     58,877    2134.257    1045.323       1924       9999
     a_drdis |     58,877     1.90667     .290897          1          2
-------------+---------------------------------------------------------
     a_drdro |     58,877    1.981198     .135826          1          2

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