Summary statistics for vehicle dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 761 43 0 43 43 ve_forms | 761 1.641261 .7443333 1 4 harm_ev | 761 13.63995 9.085511 1 43 man_coll | 761 1.477004 1.899393 0 6 hit_run | 761 .1892247 .576687 0 2 -------------+--------------------------------------------------------- veh_no | 761 1.320631 .5709711 1 4 make | 761 39.07884 24.92413 1 99 model | 761 385.2641 286.6033 1 999 body_typ | 761 19.31275 31.3422 1 99 mod_year | 761 85.93035 6.96016 60 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 | 761 47.70959 15.55232 43 99 rollover | 761 .0762155 .3583212 0 2 j_knife | 761 0 0 0 0 trav_sp | 761 86.24967 24.60029 0 99 -------------+--------------------------------------------------------- haz_carg | 761 .7095926 2.427046 0 9 tow_veh | 761 .7095926 2.427046 0 9 spec_use | 761 .7135348 2.423446 0 9 emer_use | 761 .0026281 .0512315 0 1 impact1 | 761 9.219448 4.165389 0 13 -------------+--------------------------------------------------------- impact2 | 761 9.296978 4.127393 0 13 deformed | 761 3.311432 2.607477 0 6 impacts | 761 1.183968 .5358766 0 3 towaway | 761 1.772668 .6066208 1 3 fire_exp | 761 .0052562 .0723567 0 1 -------------+--------------------------------------------------------- ocupants | 761 1.561104 1.263563 0 14 deaths | 761 .4691196 .6214629 0 4 veh_cf1 | 761 3.001314 9.018037 0 31 veh_cf2 | 761 0 0 0 0 veh_man | 761 3.080158 5.635894 1 98 -------------+--------------------------------------------------------- m_harm | 761 13.32983 9.408578 1 43 wgtcd_tr | 370 7.124324 3.298304 1 9 vin_lngt | 761 27.77792 29.38478 7 99 dr_pres | 761 1.17477 .5616653 1 3 dr_drink | 761 .2562418 .436844 0 1 -------------+--------------------------------------------------------- l_state | 761 47.60447 16.06246 12 99 l_status | 761 5.173456 2.572911 0 9 l_compl | 761 3.00657 2.173091 0 9 l_restri | 761 .9434954 2.550173 0 9 viol_chg | 761 2.29435 2.196907 0 9 -------------+--------------------------------------------------------- prev_acc | 761 8.850197 28.2579 0 99 prev_sus | 761 8.872536 28.25152 0 99 prev_dwi | 761 8.872536 28.25147 0 99 prev_spd | 761 9.036794 28.20659 0 99 prev_oth | 761 9.513798 28.07734 0 99 -------------+--------------------------------------------------------- last_mo | 761 10.98292 27.80285 0 99 last_yr | 761 40.18397 46.12398 0 99 first_mo | 761 10.81866 27.83558 0 99 first_yr | 761 39.98686 45.90536 0 99 dr_cf1 | 761 29.2707 21.88259 0 99 -------------+--------------------------------------------------------- dr_cf2 | 761 23.37319 19.50283 0 99 dr_cf3 | 761 23.71879 27.99938 0 99 st_case | 761 430285.7 161.8612 430001 430567 mak_mod | 761 39464.11 25074.27 1399 99999 vin_wgt | 642 6703.181 3725.4 1444 9999 -------------+--------------------------------------------------------- whlbs_sh | 642 5088.699 4488.905 799 9999 whlbs_lg | 642 4555.02 4977.204 0 9999 mcycl_ds | 291 9359.041 2361.334 50 9999 dr_zip | 761 9453.551 27681.95 601 99999 vin | 0 -------------+--------------------------------------------------------- ser_tr | 0 vina_mod | 0 vin_bt | 0 owner | 761 2.286465 2.153195 1 9 v_config | 761 .8554534 2.562405 0 9 -------------+--------------------------------------------------------- axles | 761 9.749014 29.46494 0 99 cargo_bt | 761 7.998686 26.66989 0 99 avoid | 761 0 0 0 0 cdl_stat | 761 .8436268 2.602224 0 9 l_endors | 761 .8081472 2.570068 0 9 by Jean Roth , jroth@nber.org , 18 Apr 2016