Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     59,495        2005           0       2005       2005
      veh_no |     59,495    1.435785    .7600739          1         20
     st_case |     59,495    270436.5    161400.8      10001     560147
      a_body |     59,495    2.768686    2.212212          1          9
      a_imp1 |     59,495    2.720565    1.357398          1          7
-------------+---------------------------------------------------------
      a_imp2 |     59,495    2.822825    1.456346          1          7
     a_vroll |     59,495    1.805345    .3959382          1          2
     a_lic_s |     59,495    1.401983    .8792166          1          4
     a_lic_c |     59,495    1.190873    .4674579          1          3
     a_cdl_s |     59,495    1.907791    .3824076          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |     59,495    3.783948    .7499943          1          4
     a_spveh |     59,495    1.794991    .4037115          1          2
      a_sbus |     59,495    2.995865     .088596          1          3
    a_mod_yr |     59,495     2169.49    1161.462       1927       9999
     a_drdis |     59,495    1.929053    .2567387          1          2
-------------+---------------------------------------------------------
     a_drdro |     59,495     1.98262    .1306822          1          2

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