Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |        616        2007           0       2007       2007
      veh_no |        616    1.381494    .6976721          1          6
     st_case |        616    430217.4    123.5712     430001     430431
      a_body |        616    2.939935    2.517832          1          9
      a_imp1 |        616    2.675325    1.129836          1          6
-------------+---------------------------------------------------------
      a_imp2 |        616    2.806818    1.306651          1          6
     a_vroll |        616    1.946429     .225353          1          2
     a_lic_s |        616    1.691558    1.131512          1          4
     a_lic_c |        616    1.288961    .5879065          1          3
     a_cdl_s |        616    2.066558    .2621708          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |        616    3.582792    .9941108          1          4
     a_spveh |        616    1.654221    .4760082          1          2
      a_sbus |        616           3           0          3          3
    a_mod_yr |        616    2439.925    1828.531       1972       9999
     a_drdis |        616           2           0          2          2
-------------+---------------------------------------------------------
     a_drdro |        616    1.993506    .0803855          1          2

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