Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |        716        1998           0       1998       1998
      veh_no |        716    1.311453    .5616485          1          4
     st_case |        716    430264.7    151.9706     430001     430524
      a_body |        716    2.361732    2.304544          1          9
      a_imp1 |        716    2.480447    1.054279          1          6
-------------+---------------------------------------------------------
      a_imp2 |        716    2.649441    1.273182          1          6
     a_vroll |        716    1.935754    .2453617          1          2
     a_lic_s |        716    1.363128     .769694          1          4
     a_lic_c |        716    1.276536    .5711549          1          3
     a_cdl_s |        716    2.048883    .2730022          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |        716    3.895251    .5277527          1          4
     a_spveh |        716    1.663408    .4728744          1          2
      a_sbus |        716           3           0          3          3
    a_mod_yr |        716    2436.419    1840.912       1962       9999
     a_drdis |        716           2           0          2          2
-------------+---------------------------------------------------------
     a_drdro |        716    1.997207    .0528147          1          2

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