Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     58,094        2006           0       2006       2006
      veh_no |     58,094    1.429115    .7641007          1         22
     st_case |     58,094    269503.2    162647.8      10001     560169
      a_body |     58,094    2.802148    2.230614          1          9
      a_imp1 |     58,094    2.725428    1.367136          1          7
-------------+---------------------------------------------------------
      a_imp2 |     58,094    2.819723    1.458242          1          7
     a_vroll |     58,094    1.801735    .3986962          1          2
     a_lic_s |     58,094    1.429201    .9051587          1          4
     a_lic_c |     58,094    1.200348    .4748536          1          3
     a_cdl_s |     58,094    1.909423    .3827702          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |     58,094    3.767188     .773912          1          4
     a_spveh |     58,094    1.788791    .4081701          1          2
      a_sbus |     58,094    2.995611    .0918297          1          3
    a_mod_yr |     58,094    2150.621    1093.897       1927       9999
     a_drdis |     58,094    1.906014    .2918112          1          2
-------------+---------------------------------------------------------
     a_drdro |     58,094    1.982855    .1298113          1          2

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