Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     54,795        1991           0       1991       1991
      veh_no |     54,795    1.416717    .8749065          1         30
     st_case |     54,795      272629    160682.8      10001     560107
      a_body |     54,795    2.338535    2.134747          1          9
      a_imp1 |     54,795     2.69426    1.368294          1          7
-------------+---------------------------------------------------------
      a_imp2 |     54,795    2.767607    1.426937          1          7
     a_vroll |     54,795    1.823159    .3815375          1          2
     a_lic_s |     54,795    1.328789     .775846          1          4
     a_lic_c |     54,795    1.200073    .4836563          1          3
     a_cdl_s |     54,795           3           0          3          3
-------------+---------------------------------------------------------
    a_mc_l_s |     54,795    3.868583    .5760845          1          4
     a_spveh |     54,795    1.774487    .4179237          1          2
      a_sbus |     54,795    2.995912    .0891087          1          3
    a_mod_yr |     54,795    2151.984    1148.942       1926       9999
     a_drdis |     54,795    1.927913    .2586341          1          2
-------------+---------------------------------------------------------
     a_drdro |     54,795    1.974779     .156798          1          2

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