Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     50,660        2008           0       2008       2008
      veh_no |     50,660    1.457442    1.331769          1         51
     st_case |     50,660    274734.4      162191      10001     560139
      a_body |     50,660    2.911488    2.301643          1          9
      a_imp1 |     50,660    2.712673     1.35251          1          7
-------------+---------------------------------------------------------
      a_imp2 |     50,660    2.791157    1.430882          1          7
     a_vroll |     50,660    1.810186    .3921581          1          2
     a_lic_s |     50,660    1.479274     .973293          1          4
     a_lic_c |     50,660    1.190624    .4634778          1          3
     a_cdl_s |     50,660    1.908429     .378309          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |     50,660    3.707777     .858398          1          4
     a_spveh |     50,660    1.788689    .4082423          1          2
      a_sbus |     50,660    2.994947    .0980179          1          3
    a_mod_yr |     50,660     2141.24    1053.804       1928       9999
     a_drdis |     50,660    1.891749    .3107003          1          2
-------------+---------------------------------------------------------
     a_drdro |     50,660    1.985255    .1205331          1          2

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