Summary statistics for veh_aux dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        year |        626        2004           0       2004       2004
      veh_no |        626     1.29393    .5454054          1          5
     st_case |        626      430229    134.0067     430001     430470
      a_body |        626    3.060703    2.730478          1          9
      a_imp1 |        626     2.65016    1.155429          1          6
-------------+---------------------------------------------------------
      a_imp2 |        626     2.79393    1.316004          1          6
     a_vroll |        626    1.948882    .2204149          1          2
     a_lic_s |        626    1.597444    1.040428          1          4
     a_lic_c |        626    1.325879    .6394007          1          3
     a_cdl_s |        626    2.092652    .2956382          1          3
-------------+---------------------------------------------------------
    a_mc_l_s |        626    3.699681    .8722751          1          4
     a_spveh |        626    1.651757    .4767944          1          2
      a_sbus |        626           3           0          3          3
    a_mod_yr |        626    2825.749    2443.656       1961       9999
     a_drdis |        626           2           0          2          2
-------------+---------------------------------------------------------
     a_drdro |        626    1.998403     .039968          1          2

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