Summary statistics for vehicle dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 718 43 0 43 43 ve_forms | 718 1.649025 .7722112 1 5 harm_ev | 718 14.29944 9.927535 1 43 man_coll | 718 1.427577 1.799478 0 6 hit_run | 718 .1740947 .5478984 0 2 -------------+--------------------------------------------------------- veh_no | 718 1.324513 .5850158 1 5 make | 718 38.10724 23.54274 1 99 model | 718 409.4596 267.7719 1 999 body_typ | 718 18.8649 30.52337 2 99 mod_year | 718 84.63092 6.872742 54 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 -------------+--------------------------------------------------------- fldcd_tr | 0 reg_stat | 718 46.38022 13.52456 6 99 rollover | 718 .0933148 .4069616 0 2 j_knife | 718 0 0 0 0 trav_sp | 718 84.64763 25.69193 0 99 -------------+--------------------------------------------------------- haz_carg | 718 .5264624 2.11358 0 9 tow_veh | 718 .5264624 2.11358 0 9 spec_use | 718 .5250696 2.100358 0 9 emer_use | 718 0 0 0 0 impact1 | 718 9.256267 4.110884 0 14 -------------+--------------------------------------------------------- impact2 | 718 9.271588 4.153613 0 14 deformed | 718 3.483287 2.566086 0 9 impacts | 718 1.167131 .5359389 0 3 towaway | 718 1.764624 .5848165 1 3 fire_exp | 718 0 0 0 0 -------------+--------------------------------------------------------- ocupants | 718 1.494429 .9862922 1 7 deaths | 718 .4930362 .630982 0 6 veh_cf1 | 718 2.536212 8.272601 0 31 veh_cf2 | 718 0 0 0 0 veh_man | 718 2.796657 4.350141 1 17 -------------+--------------------------------------------------------- m_harm | 718 13.65599 9.958913 1 43 wgtcd_tr | 280 5.825 3.719765 1 9 vin_lngt | 718 26.10446 28.07961 5 99 dr_pres | 718 1.125348 .4850896 1 3 dr_drink | 718 .2562674 .4368756 0 1 -------------+--------------------------------------------------------- l_state | 718 46.84262 14.53612 6 99 l_status | 718 4.614206 2.421468 0 9 l_compl | 718 2.89415 2.029749 0 9 l_restri | 718 .7660167 2.324057 0 9 viol_chg | 718 2.213092 2.125228 0 9 -------------+--------------------------------------------------------- prev_acc | 718 7.169916 25.67747 0 99 prev_sus | 718 7.199164 25.6699 0 99 prev_dwi | 718 7.203343 25.66891 0 99 prev_spd | 718 7.357939 25.63114 0 99 prev_oth | 718 7.990251 25.4833 0 99 -------------+--------------------------------------------------------- last_mo | 718 9.849582 25.23031 0 99 last_yr | 718 43.49443 45.94444 0 99 first_mo | 718 9.632312 25.25051 0 99 first_yr | 718 43.20056 45.64289 0 99 dr_cf1 | 718 28.03482 20.84492 0 90 -------------+--------------------------------------------------------- dr_cf2 | 718 24.36351 20.96374 0 90 dr_cf3 | 718 19.74373 25.50065 0 90 st_case | 718 430265.8 152.1217 430001 430529 mak_mod | 718 38516.7 23668.45 1007 99999 vin_wgt | 564 5443.268 3641.405 1576 9999 -------------+--------------------------------------------------------- whlbs_sh | 564 3585.31 4075.789 799 9999 whlbs_lg | 564 2903.362 4512.101 0 9999 mcycl_ds | 167 8885.832 3028.761 249 9999 dr_zip | 718 7829.086 25299.8 0 99999 vin | 0 -------------+--------------------------------------------------------- ser_tr | 0 vina_mod | 0 vin_bt | 0 owner | 718 2.151811 1.867453 1 9 v_config | 718 .6364903 2.230173 0 9 -------------+--------------------------------------------------------- axles | 718 7.314763 25.84507 0 99 cargo_bt | 718 5.972145 23.23338 0 99 avoid | 718 .0027855 .0746393 0 2 cdl_stat | 718 .6518106 2.334315 0 9 l_endors | 718 .6518106 2.334315 0 9 by Jean Roth , jroth@nber.org , 18 Apr 2016