Summary statistics for vehicle dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 57,060 27.65885 15.97696 1 56 month | 57,060 6.713477 3.390442 1 12 ve_forms | 57,060 1.867508 1.271061 1 37 harm_ev | 57,060 15.2966 10.46905 1 99 man_coll | 57,060 1.801823 1.791479 0 9 -------------+--------------------------------------------------------- hit_run | 57,060 .0580967 .3203713 0 3 underide | 57,060 .0354714 .4893977 0 9 veh_no | 57,060 1.433754 .8636173 1 37 make | 57,060 29.44895 23.82084 1 99 model | 57,060 306.9295 301.7742 1 999 -------------+--------------------------------------------------------- body_typ | 57,060 20.64911 24.13884 1 99 mod_year | 57,060 89.50156 6.08984 26 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 | 57,060 32.63764 23.4212 0 99 rollover | 57,060 .2921136 .6619111 0 2 j_knife | 57,060 .0692429 .3042379 0 3 trav_sp | 57,060 75.75943 30.0093 0 99 haz_carg | 57,060 .0656677 .742169 0 9 -------------+--------------------------------------------------------- tow_veh | 57,060 .1253242 .7206742 0 9 spec_use | 57,060 .0491413 .6153001 0 9 emer_use | 57,060 .0018402 .0428581 0 1 impact1 | 57,060 11.15379 14.14053 0 99 impact2 | 57,060 11.22149 14.2911 0 99 -------------+--------------------------------------------------------- deformed | 57,060 5.337697 1.509662 0 9 impacts | 57,060 1.215615 .68201 0 9 towaway | 57,060 1.996197 .9292067 1 9 fire_exp | 57,060 .0258149 .1585842 0 1 ocupants | 57,060 2.305293 7.875521 0 99 -------------+--------------------------------------------------------- deaths | 57,060 .6260953 .6336756 0 11 veh_cf1 | 57,060 5.235542 20.69498 0 99 veh_cf2 | 57,060 4.353225 20.26668 0 99 veh_man | 57,060 5.528637 11.16518 1 99 m_harm | 57,060 13.40149 10.20427 1 99 -------------+--------------------------------------------------------- wgtcd_tr | 20,527 3.670288 3.223091 1 9 vin_lngt | 57,060 16.56963 1.53587 1 17 dr_pres | 57,060 1.016456 .1779847 1 9 dr_drink | 57,060 .203768 .402802 0 1 l_state | 56,760 29.45104 19.06678 1 99 -------------+--------------------------------------------------------- l_status | 56,760 5.551638 1.659753 0 9 l_compl | 56,760 2.9645 1.144546 0 9 l_restri | 56,760 1.017583 1.884733 0 9 violchg1 | 56,760 4.755021 18.08637 0 99 violchg2 | 56,760 2.833104 14.61288 0 99 -------------+--------------------------------------------------------- violchg3 | 56,760 2.00148 13.04455 0 99 prev_acc | 56,760 4.881096 20.9512 0 99 prev_sus | 56,760 3.322111 17.1837 0 99 prev_dwi | 56,760 3.122357 17.19305 0 99 prev_spd | 56,760 3.394415 17.15833 0 99 -------------+--------------------------------------------------------- prev_oth | 56,760 3.319362 17.1688 0 99 last_mo | 56,760 5.776674 17.16401 0 99 last_yr | 56,760 42.72119 47.77692 0 99 first_mo | 56,760 5.769908 17.168 0 99 first_yr | 56,760 42.47144 47.49925 0 99 -------------+--------------------------------------------------------- dr_cf1 | 57,060 23.97394 25.33744 0 99 dr_cf2 | 57,060 14.99309 24.47538 0 99 dr_cf3 | 57,060 6.851034 20.79631 0 99 dr_cf4 | 57,060 2.395759 13.899 0 99 st_case | 57,060 277293.4 159690.7 10001 560118 -------------+--------------------------------------------------------- mak_mod | 57,060 29755.88 23981.27 1001 99999 vin_wgt | 38,291 3632.357 2441.683 93 9999 whlbs_sh | 54,384 1890.013 2531.199 109 9999 whlbs_lg | 54,384 1186.718 2819.843 0 9999 mcycl_ds | 4,390 5849.61 4549.029 49 9999 -------------+--------------------------------------------------------- dr_zip | 56,760 52254.29 27763.03 0 99999 vin | 0 ser_tr | 0 vina_mod | 0 vin_bt | 0 -------------+--------------------------------------------------------- owner | 57,060 1.719769 1.444845 0 9 v_config | 57,060 .5040484 1.680473 0 9 axles | 57,060 2.272222 13.70441 0 99 cargo_bt | 57,060 2.544585 15.01742 0 99 avoid | 57,060 4.125096 3.622205 0 8 -------------+--------------------------------------------------------- cdl_stat | 56,760 .9728682 2.355843 0 9 l_endors | 56,760 .3062016 1.500038 0 9 by Jean Roth , jroth@nber.org , 18 Apr 2016