Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     55,106        1983           0       1983       1983
      veh_no |     55,106    1.371593    .7053516          1         22
     st_case |     55,106    276098.5    160232.6      10001     560152
      a_body |     55,106    2.438101    2.299802          1          9
      a_imp1 |     55,106      2.6132    1.304146          1          7
-------------+---------------------------------------------------------
      a_imp2 |     55,106    2.889667    1.623545          1          7
     a_vroll |     55,106    1.839019    .3675164          1          2
     a_lic_s |     55,106    1.383388    .8858561          1          4
     a_lic_c |     55,106    1.194952    .5052422          1          3
     a_cdl_s |     55,106           3           0          3          3
-------------+---------------------------------------------------------
    a_mc_l_s |     55,106    3.921932    .2682806          3          4
     a_spveh |     55,106    1.768918    .4215285          1          2
      a_sbus |     55,106    2.996171     .086067          1          3
    a_mod_yr |     55,106     2163.71    1211.669       1909       9999
     a_drdis |     55,106    1.931242    .2530451          1          2
-------------+---------------------------------------------------------
     a_drdro |     55,106     1.97855    .1448788          1          2

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