Summary statistics for vehicle dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 57,347 27.51813 16.05926 1 56 month | 57,347 6.75521 3.40325 1 12 ve_forms | 57,347 1.924826 1.786863 1 47 harm_ev | 57,347 15.26495 10.5366 1 99 man_coll | 57,347 1.780494 1.796246 0 9 -------------+--------------------------------------------------------- hit_run | 57,347 .0567074 .3167509 0 3 underide | 57,347 .0440476 .5587379 0 9 veh_no | 57,347 1.462413 1.135654 1 47 make | 57,347 29.45235 23.79804 1 99 model | 57,347 307.005 301.2469 1 999 -------------+--------------------------------------------------------- body_typ | 57,347 20.54413 24.32288 1 99 mod_year | 57,347 88.62938 6.10726 0 99 vin_1 | 0 vin_2 | 0 vin_3 | 0 -------------+--------------------------------------------------------- vin_4 | 0 vin_5 | 0 vin_6 | 0 vin_7 | 0 vin_8 | 0 -------------+--------------------------------------------------------- vin_9 | 0 vin_10 | 0 vin_11 | 0 vin_12 | 0 fldcd_tr | 0 -------------+--------------------------------------------------------- reg_stat | 57,347 32.70541 23.90083 0 99 rollover | 57,347 .2894136 .6571627 0 2 j_knife | 57,347 .0647462 .2904146 0 3 trav_sp | 57,347 75.5163 30.28614 0 99 haz_carg | 57,347 .0688789 .7581033 0 9 -------------+--------------------------------------------------------- tow_veh | 57,347 .1248191 .7418578 0 9 spec_use | 57,347 .0494533 .6138088 0 9 emer_use | 57,347 .0017263 .0415136 0 1 impact1 | 57,347 10.99377 13.69194 0 99 impact2 | 57,347 11.06258 13.95984 0 99 -------------+--------------------------------------------------------- deformed | 57,347 5.311368 1.548956 0 9 impacts | 57,347 1.218965 .6893302 0 9 towaway | 57,347 1.995606 .9526224 1 9 fire_exp | 57,347 .0254939 .1576211 0 1 ocupants | 57,347 2.466616 8.755988 0 99 -------------+--------------------------------------------------------- deaths | 57,347 .6224563 .625084 0 8 veh_cf1 | 57,347 4.632553 19.354 0 99 veh_cf2 | 57,347 3.760319 18.87611 0 99 veh_man | 57,347 5.369296 10.79894 1 99 m_harm | 57,347 13.41849 10.37698 1 99 -------------+--------------------------------------------------------- wgtcd_tr | 20,489 3.688857 3.245017 1 9 vin_lngt | 57,347 16.47994 1.665679 2 17 dr_pres | 57,347 1.015345 .1652773 1 9 dr_drink | 57,347 .2179364 .4128476 0 1 l_state | 57,069 29.26142 19.10585 1 99 -------------+--------------------------------------------------------- l_status | 57,069 5.527817 1.684502 0 9 l_compl | 57,069 2.95544 1.149263 0 9 l_restri | 57,069 .9808828 1.842735 0 9 viol_chg | 57,069 .8030104 2.180215 0 9 prev_acc | 57,069 4.925301 21.01651 0 99 -------------+--------------------------------------------------------- prev_sus | 57,069 3.366223 17.27958 0 99 prev_dwi | 57,069 3.160192 17.28786 0 99 prev_spd | 57,069 3.438767 17.25182 0 99 prev_oth | 57,069 3.360826 17.2633 0 99 last_mo | 57,069 5.902048 17.25934 0 99 -------------+--------------------------------------------------------- last_yr | 57,069 43.33808 47.41923 0 99 first_mo | 57,069 5.874328 17.2647 0 99 first_yr | 57,069 43.08085 47.13983 0 99 dr_cf1 | 57,347 24.57171 25.67406 0 99 dr_cf2 | 57,347 15.30209 24.72198 0 99 -------------+--------------------------------------------------------- dr_cf3 | 57,347 7.271069 21.70852 0 99 st_case | 57,347 275920.6 160499.4 10001 560121 mak_mod | 57,347 29759.36 23959.11 1001 99999 vin_wgt | 38,670 3610.713 2447.384 108 9999 whlbs_sh | 54,551 1891.844 2542.849 90 9999 -------------+--------------------------------------------------------- whlbs_lg | 54,551 1200.434 2829.194 0 9999 mcycl_ds | 4,552 5983.44 4548.629 49 9999 dr_zip | 57,069 53123.18 27819.83 0 99999 vin | 0 ser_tr | 0 -------------+--------------------------------------------------------- vina_mod | 0 vin_bt | 0 owner | 57,347 1.721851 1.470838 0 9 v_config | 57,347 .4949518 1.675853 0 9 axles | 57,347 2.265158 13.72982 0 99 -------------+--------------------------------------------------------- cargo_bt | 57,347 2.623014 15.27873 0 99 avoid | 57,347 4.000698 3.63898 0 8 cdl_stat | 57,069 .9312762 2.318231 0 9 l_endors | 57,069 .3030192 1.487447 0 9 by Jean Roth , jroth@nber.org , 18 Apr 2016