Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |        638        2001           0       2001       2001
      veh_no |        638    1.318182    .6092035          1          6
     st_case |        638    430235.4    135.6993     430001     430470
      a_body |        638    2.545455     2.45275          1          9
      a_imp1 |        638    2.521944    1.034107          1          6
-------------+---------------------------------------------------------
      a_imp2 |        638    2.634796     1.20953          1          6
     a_vroll |        638    1.948276    .2216433          1          2
     a_lic_s |        638    1.405956    .9085823          1          4
     a_lic_c |        638    1.227273    .5462092          1          3
     a_cdl_s |        638    2.056426    .2504898          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |        638    3.793103    .7291741          1          4
     a_spveh |        638    1.653605    .4761942          1          2
      a_sbus |        638    2.998433    .0395904          2          3
    a_mod_yr |        638    2544.621    2030.427       1967       9999
     a_drdis |        638           2           0          2          2
-------------+---------------------------------------------------------
     a_drdro |        638    1.995298    .0684648          1          2

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