Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |        662        2002           0       2002       2002
      veh_no |        662    1.280967     .500741          1          3
     st_case |        662      430245    142.2023     430001     430494
      a_body |        662    2.859517    2.585288          1          9
      a_imp1 |        662    2.436556    .9922814          1          6
-------------+---------------------------------------------------------
      a_imp2 |        662    2.528701    1.135958          1          6
     a_vroll |        662    1.962236      .19077          1          2
     a_lic_s |        662    1.507553    .9835733          1          4
     a_lic_c |        662    1.261329    .5818615          1          3
     a_cdl_s |        662    2.069486    .2660964          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |        662    3.729607    .8419771          1          4
     a_spveh |        662    1.646526    .4784098          1          2
      a_sbus |        662    2.996979    .0777322          1          3
    a_mod_yr |        662      2524.9    1995.822       1962       9999
     a_drdis |        662           2           0          2          2
-------------+---------------------------------------------------------
     a_drdro |        662    1.995468    .0672161          1          2

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