Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |        727        2000           0       2000       2000
      veh_no |        727    1.317744    .5373144          1          4
     st_case |        727    430258.2      149.76     430001     430521
      a_body |        727    2.543329    2.469758          1          9
      a_imp1 |        727     2.47868    1.038793          1          5
-------------+---------------------------------------------------------
      a_imp2 |        727    2.596974    1.187001          1          6
     a_vroll |        727     1.94773    .2227234          1          2
     a_lic_s |        727    1.405777    .8901788          1          4
     a_lic_c |        727    1.242091    .5596536          1          3
     a_cdl_s |        727    2.053645    .2699552          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |        727    3.804677    .7199098          1          4
     a_spveh |        727    1.657497    .4748737          1          2
      a_sbus |        727           3           0          3          3
    a_mod_yr |        727    2486.934    1930.966       1967       9999
     a_drdis |        727           2           0          2          2
-------------+---------------------------------------------------------
     a_drdro |        727    1.991747    .0905332          1          2

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