Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     57,972        1984           0       1984       1984
      veh_no |     57,972    1.375888    .6757022          1         23
     st_case |     57,972    276175.1    161333.4      10001     560140
      a_body |     57,972    2.463155    2.308376          1          9
      a_imp1 |     57,972    2.627579    1.305339          1          7
-------------+---------------------------------------------------------
      a_imp2 |     57,972    2.883754    1.599439          1          7
     a_vroll |     57,972     1.84082    .3658473          1          2
     a_lic_s |     57,972    1.387204     .889075          1          4
     a_lic_c |     57,972    1.193524    .4930709          1          3
     a_cdl_s |     57,972           3           0          3          3
-------------+---------------------------------------------------------
    a_mc_l_s |     57,972    3.919634    .2718619          3          4
     a_spveh |     57,972    1.774029    .4182239          1          2
      a_sbus |     57,972    2.995705    .0915549          1          3
    a_mod_yr |     57,972    2164.751    1211.996       1900       9999
     a_drdis |     57,972    1.930846    .2537181          1          2
-------------+---------------------------------------------------------
     a_drdro |     57,972    1.979611    .1413286          1          2

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