Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |        629        1991           0       1991       1991
      veh_no |        629    1.306836    .5611927          1          5
     st_case |        629    430237.3    133.7018     430001     430474
      a_body |        629    2.306836    2.396847          1          9
      a_imp1 |        629    2.384738    .9650695          1          6
-------------+---------------------------------------------------------
      a_imp2 |        629    2.416534    1.030481          1          6
     a_vroll |        629    1.961844    .1917247          1          2
     a_lic_s |        629    1.429253    .7861275          1          4
     a_lic_c |        629    1.337043    .5844957          1          3
     a_cdl_s |        629           3           0          3          3
-------------+---------------------------------------------------------
    a_mc_l_s |        629    3.891892    .5243265          1          4
     a_spveh |        629    1.674086    .4690884          1          2
      a_sbus |        629           3           0          3          3
    a_mod_yr |        629    2313.569    1597.147       1956       9999
     a_drdis |        629     1.99841    .0398726          1          2
-------------+---------------------------------------------------------
     a_drdro |        629     1.99841    .0398726          1          2

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