Summary statistics for vehicle dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 54,911 27.07576 16.03973 1 56 month | 54,911 6.823788 3.369404 1 12 ve_forms | 54,911 1.828322 .9125742 1 15 harm_ev | 54,911 15.15556 10.3937 1 99 man_coll | 54,911 1.7416 1.774291 0 9 -------------+--------------------------------------------------------- hit_run | 54,911 .059988 .3249588 0 3 underide | 54,911 .0441624 .5439341 0 9 veh_no | 54,911 1.414161 .6876271 1 15 make | 54,911 29.47939 23.74834 1 99 model | 54,911 302.9063 304.7151 1 999 -------------+--------------------------------------------------------- body_typ | 54,911 20.59937 24.7555 1 99 mod_year | 54,911 86.63523 6.15815 23 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 | 54,911 32.48657 24.14349 0 99 rollover | 54,911 .285298 .6545099 0 2 j_knife | 54,911 .0637213 .2888078 0 3 trav_sp | 54,911 75.05066 30.4874 0 99 haz_carg | 54,911 .079383 .8138414 0 9 -------------+--------------------------------------------------------- tow_veh | 54,911 .1273151 .7576591 0 9 spec_use | 54,911 .0627925 .7003068 0 9 emer_use | 54,911 .001894 .043479 0 1 impact1 | 54,911 10.85121 13.7309 0 99 impact2 | 54,911 11.17505 14.57845 0 99 -------------+--------------------------------------------------------- deformed | 54,911 5.309173 1.566635 0 9 impacts | 54,911 1.200998 .6343041 0 9 towaway | 54,911 1.966309 .8740338 1 9 fire_exp | 54,911 .0278451 .1645303 0 1 ocupants | 54,911 2.656517 9.760539 0 99 -------------+--------------------------------------------------------- deaths | 54,911 .624975 .6335504 0 14 veh_cf1 | 54,911 4.868678 19.77752 0 99 veh_cf2 | 54,911 3.934348 19.29084 0 99 veh_man | 54,911 5.401923 10.82307 1 99 m_harm | 54,911 13.44385 10.42115 1 99 -------------+--------------------------------------------------------- wgtcd_tr | 19,196 3.694936 3.274484 1 9 vin_lngt | 54,911 16.20551 1.973194 1 17 dr_pres | 54,911 1.01619 .1745305 1 9 dr_drink | 54,911 .2286791 .419986 0 1 l_state | 54,624 28.67904 18.99103 1 99 -------------+--------------------------------------------------------- l_status | 54,624 5.539378 1.688995 0 9 l_compl | 54,624 2.97135 1.205503 0 9 l_restri | 54,624 .9646859 1.869235 0 9 viol_chg | 54,624 .8314477 2.202145 0 9 prev_acc | 54,624 5.088825 21.35277 0 99 -------------+--------------------------------------------------------- prev_sus | 54,624 3.589466 17.84011 0 99 prev_dwi | 54,624 3.378588 17.84513 0 99 prev_spd | 54,624 3.649806 17.80771 0 99 prev_oth | 54,624 3.558564 17.82081 0 99 last_mo | 54,624 6.122638 17.78197 0 99 -------------+--------------------------------------------------------- last_yr | 54,624 43.0807 46.55287 0 99 first_mo | 54,624 6.097411 17.78241 0 99 first_yr | 54,624 42.81812 46.27556 0 99 dr_cf1 | 54,911 24.62574 25.88547 0 99 dr_cf2 | 54,911 15.47652 24.81035 0 99 -------------+--------------------------------------------------------- dr_cf3 | 54,911 7.527945 21.9901 0 99 st_case | 54,911 271482.1 160241.1 10001 560135 mak_mod | 54,911 29782.3 23914.06 1001 99999 vin_wgt | 36,924 3568.834 2467.358 101 9999 whlbs_sh | 51,481 1840.11 2474.987 109 9999 -------------+--------------------------------------------------------- whlbs_lg | 51,481 1171.245 2754.234 0 9999 mcycl_ds | 4,584 5870.705 4573.954 49 9999 dr_zip | 54,624 52937.11 28029.62 0 99999 vin | 0 ser_tr | 0 -------------+--------------------------------------------------------- vina_mod | 0 vin_bt | 0 owner | 54,911 1.738358 1.466769 0 9 v_config | 54,911 .4210632 1.459036 0 9 axles | 54,911 2.513176 14.63928 0 99 -------------+--------------------------------------------------------- cargo_bt | 54,911 1.40959 10.57841 0 99 avoid | 54,911 3.930651 3.646769 0 8 cdl_stat | 54,624 .9449509 2.348044 0 9 l_endors | 54,624 .3310816 1.590489 0 9 by Jean Roth , jroth@nber.org , 18 Apr 2016