Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |        581        1982           0       1982       1982
      veh_no |        581    1.304647    .7555284          1          9
     st_case |        581    430230.1    129.4777     430001     430454
      a_body |        581    2.521515    2.697694          1          9
      a_imp1 |        581    2.907057    1.659342          1          7
-------------+---------------------------------------------------------
      a_imp2 |        581    2.919105    1.665677          1          7
     a_vroll |        581    1.932874    .2504551          1          2
     a_lic_s |        581    1.504303    .8461263          1          4
     a_lic_c |        581    1.394148    .6704863          1          3
     a_cdl_s |        581           3           0          3          3
-------------+---------------------------------------------------------
    a_mc_l_s |        581    3.956971    .2030979          3          4
     a_spveh |        581    1.686747     .464216          1          2
      a_sbus |        581           3           0          3          3
    a_mod_yr |        581    2790.348    2425.602       1961       9999
     a_drdis |        581           2           0          2          2
-------------+---------------------------------------------------------
     a_drdro |        581           2           0          2          2

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