Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |     58,426        2002           0       2002       2002
      veh_no |     58,426    1.493479    1.643514          1         58
     st_case |     58,426    275611.8    161138.7      10001     560151
      a_body |     58,426     2.54878    2.094954          1          9
      a_imp1 |     58,426    2.666655    1.328917          1          7
-------------+---------------------------------------------------------
      a_imp2 |     58,426    2.719662    1.377684          1          7
     a_vroll |     58,426    1.806918      .39472          1          2
     a_lic_s |     58,426    1.337915    .7927307          1          4
     a_lic_c |     58,426    1.185808    .4622668          1          3
     a_cdl_s |     58,426    1.907901    .3796585          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |     58,426    3.842827    .6454963          1          4
     a_spveh |     58,426    1.788382     .408459          1          2
      a_sbus |     58,426    2.995944     .088155          1          3
    a_mod_yr |     58,426    2131.571    1039.277       1923       9999
     a_drdis |     58,426    1.921901    .2683293          1          2
-------------+---------------------------------------------------------
     a_drdro |     58,426    1.978571    .1448102          1          2

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