Summary statistics for vehicle dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 43,945 27.90996 16.25294 1 56 st_case | 43,945 279697.4 162493.4 10001 560121 veh_no | 43,945 1.40983 .7764241 1 26 ve_forms | 43,945 1.81602 1.105729 1 26 numoccs | 43,945 1.62717 3.243773 0 99 -------------+--------------------------------------------------------- day | 43,945 15.59907 8.833238 1 31 month | 43,945 6.750643 3.331172 1 12 hour | 43,945 13.14409 9.011093 0 99 minute | 43,945 28.77476 18.1633 0 99 harm_ev | 43,945 16.76423 12.75183 1 99 -------------+--------------------------------------------------------- man_coll | 43,945 2.571942 5.954961 0 99 unittype | 43,945 1 0 1 1 hit_run | 43,945 .0391171 .3000303 0 9 reg_stat | 43,945 30.43149 20.6508 0 99 owner | 43,945 1.682467 1.331185 0 9 -------------+--------------------------------------------------------- make | 43,945 35.0139 25.97712 1 99 model | 43,945 360.372 304.2414 1 999 mak_mod | 43,945 35374.28 26129.11 1009 99999 body_typ | 43,945 26.97665 28.19482 1 99 mod_year | 43,945 2160.028 1114.737 1915 9999 -------------+--------------------------------------------------------- vin | 0 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 tow_veh | 43,945 .0882467 .4856811 0 9 vintype | 0 -------------+--------------------------------------------------------- vinmake | 0 vina_mod | 0 vin_bt | 0 vinmodyr | 42,678 33.60553 42.01906 0 99 vin_lngt | 42,736 16.94485 .6233438 5 17 -------------+--------------------------------------------------------- vin_wgt | 23,174 3315.081 886.3785 0 7725 wgtcd_tr | 14,275 3.031313 2.614681 1 8 whlbs_lg | 37,431 239.8009 593.4867 0 3080 whlbs_sh | 37,431 1065.528 332.8808 0 2000 ser_tr | 0 -------------+--------------------------------------------------------- fuelcode | 0 mcycl_ds | 4,451 1052.936 432.9145 49 2294 carbur | 0 cylinder | 0 displace | 0 -------------+--------------------------------------------------------- mcycl_cy | 0 mcycl_wt | 0 tire_sze | 0 ton_rat | 0 trk_wt | 0 -------------+--------------------------------------------------------- trkwtvar | 0 vin_rest | 0 whldrwhl | 0 j_knife | 43,945 .0728638 .298011 0 3 mcarr_i1 | 43,945 5.626783 18.80485 0 99 -------------+--------------------------------------------------------- mcarr_i2 | 0 mcarr_id | 0 gvwr | 43,945 .2761179 .9337658 0 9 v_config | 43,945 .7652065 5.364401 0 99 cargo_bt | 43,945 1.861941 12.20411 0 99 -------------+--------------------------------------------------------- haz_inv | 43,945 1.0033 .0573478 1 2 haz_plac | 43,945 .0082148 .1743649 0 8 haz_id | 43,945 11.73578 281.9266 0 9999 haz_cno | 43,945 .0680168 2.270344 0 88 haz_rel | 43,945 .0070315 .1724485 0 8 -------------+--------------------------------------------------------- bus_use | 43,945 .2557515 4.815494 0 99 spec_use | 43,945 .230652 4.629373 0 99 emer_use | 43,945 .0193879 .4055493 0 9 trav_sp | 43,945 592.7336 470.2519 0 999 underide | 43,945 .0509956 .5768124 0 9 -------------+--------------------------------------------------------- rollover | 43,945 .2347707 .7042185 0 9 rolinloc | 43,945 .7614063 1.794928 0 9 impact1 | 43,945 14.73467 20.16267 0 99 impact2 | 43,945 23.10058 31.17788 0 99 deformed | 43,945 5.38307 1.591835 0 9 -------------+--------------------------------------------------------- towed | 43,945 2.154625 1.055319 1 9 m_harm | 43,945 14.31924 12.33242 1 99 veh_sc1 | 43,945 .6126977 6.348126 0 99 veh_sc2 | 43,945 .3065195 5.47574 0 99 fire_exp | 43,945 .0303561 .1715672 0 1 -------------+--------------------------------------------------------- dr_pres | 43,945 .9951075 .0806666 0 9 l_state | 43,945 29.34675 19.12862 0 99 dr_zip | 43,945 52646.78 27805.48 0 99999 l_status | 43,945 5.511617 1.707294 0 9 l_type | 43,945 1.210832 1.319617 0 9 -------------+--------------------------------------------------------- cdl_stat | 43,945 3.650313 16.55694 0 99 l_endors | 43,945 .271544 1.407105 0 9 l_compl | 43,945 2.951121 1.169008 0 9 l_restri | 43,945 1.02692 1.858902 0 9 dr_hgt | 43,945 194.3216 318.1323 38 999 -------------+--------------------------------------------------------- dr_wgt | 43,945 467.0862 391.2366 50 999 prev_acc | 43,945 14.65942 76.09193 0 998 prev_sus | 43,945 8.691592 72.96852 0 998 prev_dwi | 43,945 8.361338 72.99388 0 998 prev_spd | 43,945 8.573467 72.97207 0 998 -------------+--------------------------------------------------------- prev_oth | 43,945 8.603686 72.97003 0 998 first_mo | 43,945 6.345841 18.75773 0 99 first_yr | 43,945 1181.093 2001.714 0 9999 last_mo | 43,945 6.338104 18.7572 0 99 last_yr | 43,945 1181.336 2001.815 0 9999 -------------+--------------------------------------------------------- speedrel | 43,945 .4815792 1.551203 0 9 dr_sf1 | 43,945 22.99991 29.4072 0 99 dr_sf2 | 43,945 8.03716 23.50607 0 99 dr_sf3 | 43,945 3.837297 18.44537 0 99 dr_sf4 | 43,945 3.030515 16.98419 0 99 -------------+--------------------------------------------------------- vtrafway | 43,945 1.779838 1.267127 0 9 vnum_lan | 43,945 2.500444 1.054476 0 9 vspd_lim | 43,945 51.17071 15.79347 0 99 valign | 43,945 1.447787 1.056247 0 9 vprofile | 43,945 1.841051 1.77419 0 9 -------------+--------------------------------------------------------- vpavetyp | 43,945 3.090727 2.414877 0 9 vsurcond | 43,945 1.919672 8.121938 0 99 vtrafcon | 43,945 4.197997 13.51702 0 99 vtcont_f | 43,945 .6765275 1.364844 0 9 p_crash1 | 43,945 5.885812 10.86218 0 99 -------------+--------------------------------------------------------- p_crash2 | 43,945 39.16163 29.2274 1 99 p_crash3 | 43,945 11.55945 28.8831 0 99 pcrash4 | 43,945 1.502264 1.532686 0 9 pcrash5 | 43,945 2.206167 1.588234 0 9 acc_type | 43,945 43.33085 35.81883 0 99 -------------+--------------------------------------------------------- deaths | 43,945 .6157697 .5956498 0 15 dr_drink | 43,945 .2108772 .407936 0 1 by Jean Roth , jroth@nber.org , 18 Apr 2016