Summary statistics for vehicle dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 56,524 27.07498 16.00327 1 56 month | 56,524 6.773194 3.372955 1 12 ve_forms | 56,524 1.893214 1.493384 1 32 harm_ev | 56,524 15.34691 10.54842 1 99 man_coll | 56,524 1.760367 1.800357 0 9 -------------+--------------------------------------------------------- hit_run | 56,524 .0576038 .3184617 0 3 underide | 56,524 .0451667 .5558153 0 9 veh_no | 56,524 1.446607 .9791617 1 32 make | 56,524 29.04274 23.33204 1 99 model | 56,524 301.3296 299.37 1 999 -------------+--------------------------------------------------------- body_typ | 56,524 20.20096 24.14064 1 99 mod_year | 56,524 87.6588 6.09965 13 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 | 56,524 32.67371 24.34361 0 99 rollover | 56,524 .2914691 .6625901 0 2 j_knife | 56,524 .0616022 .285757 0 3 trav_sp | 56,524 75.36903 30.2974 0 99 haz_carg | 56,524 .0704656 .7700442 0 9 -------------+--------------------------------------------------------- tow_veh | 56,524 .1227089 .7494183 0 9 spec_use | 56,524 .0550032 .6415486 0 9 emer_use | 56,524 .0015569 .0394267 0 1 impact1 | 56,524 10.84256 13.32308 0 99 impact2 | 56,524 10.99542 13.7968 0 99 -------------+--------------------------------------------------------- deformed | 56,524 5.337343 1.538043 0 9 impacts | 56,524 1.217748 .6758469 0 9 towaway | 56,524 1.97946 .9039183 1 9 fire_exp | 56,524 .0277935 .1643822 0 1 ocupants | 56,524 2.587078 9.404529 0 99 -------------+--------------------------------------------------------- deaths | 56,524 .6243543 .6313316 0 9 veh_cf1 | 56,524 4.834584 19.76022 0 99 veh_cf2 | 56,524 3.932807 19.28614 0 99 veh_man | 56,524 5.47042 11.29993 1 99 m_harm | 56,524 13.51852 10.55041 1 99 -------------+--------------------------------------------------------- wgtcd_tr | 19,993 3.606512 3.23027 1 9 vin_lngt | 56,524 16.3556 1.821631 4 17 dr_pres | 56,524 1.017762 .1906361 1 9 dr_drink | 56,524 .2236572 .4166986 0 1 l_state | 56,245 28.73774 18.99927 1 99 -------------+--------------------------------------------------------- l_status | 56,245 5.518464 1.713495 0 9 l_compl | 56,245 2.965935 1.194873 0 9 l_restri | 56,245 .9700418 1.853531 0 9 viol_chg | 56,245 .820304 2.201599 0 9 prev_acc | 56,245 5.13235 21.45309 0 99 -------------+--------------------------------------------------------- prev_sus | 56,245 3.675491 18.03056 0 99 prev_dwi | 56,245 3.452698 18.04181 0 99 prev_spd | 56,245 3.719744 18.00447 0 99 prev_oth | 56,245 3.646706 18.01612 0 99 last_mo | 56,245 6.203663 17.97423 0 99 -------------+--------------------------------------------------------- last_yr | 56,245 43.55834 47.02319 0 99 first_mo | 56,245 6.188248 17.97495 0 99 first_yr | 56,245 43.30271 46.74978 0 99 dr_cf1 | 56,524 24.66671 25.78371 0 99 dr_cf2 | 56,524 15.39898 24.96113 0 99 -------------+--------------------------------------------------------- dr_cf3 | 56,524 7.418088 22.07738 0 99 st_case | 56,524 271476.4 159892.7 10001 560138 mak_mod | 56,524 29344.07 23488.57 1001 99999 vin_wgt | 38,111 3559.858 2418.875 101 9999 whlbs_sh | 53,464 1829.323 2454.265 90 9999 -------------+--------------------------------------------------------- whlbs_lg | 53,464 1146.227 2733.512 0 9999 mcycl_ds | 4,579 5830.724 4573.461 49 9999 dr_zip | 56,245 52763.16 27963.47 0 99999 vin | 0 ser_tr | 0 -------------+--------------------------------------------------------- vina_mod | 0 vin_bt | 0 owner | 56,524 1.73988 1.498004 0 9 v_config | 56,524 .4668813 1.63393 0 9 axles | 56,524 2.360555 14.15132 0 99 -------------+--------------------------------------------------------- cargo_bt | 56,524 2.449508 14.77814 0 99 avoid | 56,524 3.793097 3.631465 0 8 cdl_stat | 56,245 .9151747 2.319542 0 9 l_endors | 56,245 .31297 1.539674 0 9 by Jean Roth , jroth@nber.org , 18 Apr 2016