Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     56,524        1995           0       1995       1995
      veh_no |     56,524    1.446607    .9791617          1         32
     st_case |     56,524    271476.4    159892.7      10001     560138
      a_body |     56,524    2.305976     2.01754          1          9
      a_imp1 |     56,524    2.679251    1.344061          1          7
-------------+---------------------------------------------------------
      a_imp2 |     56,524    2.722206    1.378677          1          7
     a_vroll |     56,524    1.824782    .3801565          1          2
     a_lic_s |     56,524    1.289134    .7135351          1          4
     a_lic_c |     56,524     1.18838    .4675127          1          3
     a_cdl_s |     56,524    1.923572    .3666818          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |     56,524    3.895195     .522737          1          4
     a_spveh |     56,524    1.790938    .4066421          1          2
      a_sbus |     56,524    2.995577    .0935715          1          3
    a_mod_yr |     56,524    2138.957    1091.324       1913       9999
     a_drdis |     56,524    1.939919    .2376384          1          2
-------------+---------------------------------------------------------
     a_drdro |     56,524    1.974559    .1574603          1          2

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