Summary statistics for vehicle dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 740 43 0 43 43 month | 740 6.656757 3.460353 1 12 ve_forms | 740 1.572973 .6753533 1 4 harm_ev | 740 14.45946 9.977769 1 43 man_coll | 740 1.298649 1.736732 0 6 -------------+--------------------------------------------------------- hit_run | 740 .1324324 .4976557 0 2 underide | 740 .5594595 2.174518 0 9 veh_no | 740 1.286486 .5244559 1 4 make | 740 41.46892 23.61011 1 99 model | 740 246.9784 313.8353 1 999 -------------+--------------------------------------------------------- body_typ | 740 17.64865 29.38132 2 99 mod_year | 740 89.18919 6.863399 67 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 | 740 46.59054 13.85938 12 99 rollover | 740 .1148649 .4493816 0 2 j_knife | 740 0 0 0 0 trav_sp | 740 89.20541 22.5621 0 99 haz_carg | 740 .5594595 2.174518 0 9 -------------+--------------------------------------------------------- tow_veh | 740 .5594595 2.174518 0 9 spec_use | 740 .5594595 2.174518 0 9 emer_use | 740 .0013514 .0367607 0 1 impact1 | 740 9.363514 4.028856 0 13 impact2 | 740 9.456757 4.057706 0 13 -------------+--------------------------------------------------------- deformed | 740 3.551351 2.585231 0 6 impacts | 740 1.163514 .5006287 0 3 towaway | 740 1.731081 .5692684 1 3 fire_exp | 740 .0175676 .1314622 0 1 ocupants | 740 1.540541 1.09975 0 12 -------------+--------------------------------------------------------- deaths | 740 .4851351 .5895303 0 3 veh_cf1 | 740 2.090541 7.666327 0 31 veh_cf2 | 740 0 0 0 0 veh_man | 740 2.410811 3.605197 1 17 m_harm | 740 12.96351 9.438929 1 43 -------------+--------------------------------------------------------- wgtcd_tr | 182 5.736264 3.732299 1 9 vin_lngt | 740 16.32703 1.937752 5 17 dr_pres | 740 1.131081 .4939213 1 3 dr_drink | 740 .2243243 .4174187 0 1 l_state | 739 46.38701 14.11736 12 99 -------------+--------------------------------------------------------- l_status | 739 5.529093 2.220905 0 9 l_compl | 739 3.031123 1.95695 0 9 l_restri | 739 .6698241 2.36375 0 9 violchg1 | 739 5.525034 10.16865 0 86 violchg2 | 739 21.87009 20.21616 0 98 -------------+--------------------------------------------------------- violchg3 | 739 13.50068 22.50585 0 89 prev_acc | 739 7.368065 26.00125 0 99 prev_sus | 739 7.368065 26.00125 0 99 prev_dwi | 739 7.369418 26.00089 0 99 prev_spd | 739 7.476319 25.97514 0 99 -------------+--------------------------------------------------------- prev_oth | 739 8.235453 25.79692 0 99 last_mo | 739 9.737483 25.59247 0 99 last_yr | 739 41.87009 47.69005 0 99 first_mo | 739 9.562923 25.619 0 99 first_yr | 739 41.64547 47.43778 0 99 -------------+--------------------------------------------------------- dr_cf1 | 740 29.07297 20.11725 0 87 dr_cf2 | 740 24.27432 17.21602 0 86 dr_cf3 | 740 22.85946 25.08857 0 90 dr_cf4 | 740 5.662162 15.10099 0 90 st_case | 740 430279.9 158.6866 430001 430553 -------------+--------------------------------------------------------- mak_mod | 740 41715.9 23772.6 1007 99999 vin_wgt | 616 4303.69 3298.67 172 9999 whlbs_sh | 691 2447.986 3289.548 799 9999 whlbs_lg | 691 1711.114 3633.447 0 9999 mcycl_ds | 107 8351.393 3565.034 80 9999 -------------+--------------------------------------------------------- dr_zip | 739 7486.194 24549.61 601 99999 vin | 0 ser_tr | 0 vina_mod | 0 vin_bt | 0 -------------+--------------------------------------------------------- owner | 740 2.15 1.936876 1 9 v_config | 740 .8689189 2.539614 0 9 axles | 740 10.13919 29.95076 0 99 cargo_bt | 740 10.27838 30.11324 0 99 avoid | 740 .0013514 .0367607 0 1 -------------+--------------------------------------------------------- cdl_stat | 739 .7050068 2.395709 0 9 l_endors | 739 .6779432 2.36659 0 9 by Jean Roth , jroth@nber.org , 18 Apr 2016