Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     57,594        2000           0       2000       2000
      veh_no |     57,594    1.452617    .8739332          1         32
     st_case |     57,594    277816.6    160828.3      10001     560132
      a_body |     57,594    2.517363    2.082406          1          9
      a_imp1 |     57,594    2.678543    1.338967          1          7
-------------+---------------------------------------------------------
      a_imp2 |     57,594    2.752735    1.407578          1          7
     a_vroll |     57,594    1.818176    .3857032          1          2
     a_lic_s |     57,594    1.315866    .7649421          1          4
     a_lic_c |     57,594    1.181581    .4601197          1          3
     a_cdl_s |     57,594    1.902924    .3859802          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |     57,594    3.860038    .6093508          1          4
     a_spveh |     57,594    1.805865    .3955366          1          2
      a_sbus |     57,594    2.995347    .0941717          1          3
    a_mod_yr |     57,594    2118.108    995.8119          0       9999
     a_drdis |     57,594    1.929541    .2559208          1          2
-------------+---------------------------------------------------------
     a_drdro |     57,594    1.976421    .1517343          1          2

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