Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     62,703        1988           0       1988       1988
      veh_no |     62,703    1.399789    .6907353          1         17
     st_case |     62,703    271613.7    159307.1      10001     560131
      a_body |     62,703    2.353492    2.169583          1          9
      a_imp1 |     62,703    2.662855    1.352493          1          7
-------------+---------------------------------------------------------
      a_imp2 |     62,703    2.766439    1.436616          1          7
     a_vroll |     62,703     1.82878     .376704          1          2
     a_lic_s |     62,703     1.34177    .8073483          1          4
     a_lic_c |     62,703    1.191905    .4784903          1          3
     a_cdl_s |     62,703           3           0          3          3
-------------+---------------------------------------------------------
    a_mc_l_s |     62,703     3.84838    .6178988          1          4
     a_spveh |     62,703    1.766024    .4233605          1          2
      a_sbus |     62,703    2.996444    .0830243          1          3
    a_mod_yr |     62,703    2150.104    1151.457       1900       9999
     a_drdis |     62,703    1.926048    .2616945          1          2
-------------+---------------------------------------------------------
     a_drdro |     62,703    1.976445    .1516608          1          2

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