Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 37,862 27.59513 16.15352 1 56 county | 37,862 90.15665 94.97455 0 999 month | 37,862 6.811183 3.367505 1 12 day | 37,862 15.75897 8.982321 1 99 hour | 37,862 13.30524 10.24834 0 99 -------------+--------------------------------------------------------- minute | 37,862 28.30981 18.52874 0 99 ve_forms | 37,862 1.529713 .8413094 1 57 persons | 37,862 2.672046 1.967612 1 99 peds | 37,862 .1708573 .4470814 0 13 nhs | 37,862 .3607575 .8008641 0 9 -------------+--------------------------------------------------------- road_fnc | 37,862 7.871322 6.303667 1 99 route | 37,862 3.551292 1.82343 1 9 sp_jur | 37,862 .0309281 .368484 0 9 harm_ev | 37,862 17.26578 12.73227 1 99 man_coll | 37,862 1.221119 1.698061 0 9 -------------+--------------------------------------------------------- rel_junc | 37,862 1.768845 2.784376 1 99 rel_road | 37,862 2.532381 4.955862 1 99 traf_flo | 37,862 1.58568 1.106198 1 9 no_lanes | 37,862 2.528551 1.246496 1 9 sp_limit | 37,862 50.43727 14.69456 0 99 -------------+--------------------------------------------------------- alignmnt | 37,862 1.297607 .7157213 1 9 profile | 37,862 1.469917 1.255812 1 9 pave_typ | 37,862 2.22479 1.434866 1 9 sur_cond | 37,862 1.252047 .8213514 1 9 tra_cont | 37,862 4.068538 11.39961 0 99 -------------+--------------------------------------------------------- t_cont_f | 37,862 .6578892 1.318525 0 9 hit_run | 37,862 .0679837 .3540903 0 3 lgt_cond | 37,862 1.78073 1.040599 1 9 weather | 37,862 1.248376 .9340283 1 9 c_m_zone | 37,862 .0313243 .2408819 0 4 -------------+--------------------------------------------------------- not_hour | 37,862 39.11199 40.88017 0 99 not_min | 37,862 49.72799 36.54919 0 99 arr_hour | 37,862 37.91723 40.38136 0 99 arr_min | 37,862 50.63053 36.79236 0 99 hosp_hr | 37,862 51.90347 45.91107 0 99 -------------+--------------------------------------------------------- hosp_mn | 37,862 56.93849 43.04053 0 99 sch_bus | 37,862 .0033807 .0580462 0 1 cf1 | 37,862 .9639216 6.421569 0 99 cf2 | 37,862 .3201363 5.477545 0 99 cf3 | 37,862 .3006973 5.44788 0 99 -------------+--------------------------------------------------------- fatals | 37,862 1.114468 .4110763 1 11 day_week | 37,862 4.147562 2.113462 1 9 drunk_dr | 37,862 .4164862 .6310137 0 9 st_case | 37,862 276697.1 161446.3 10001 560155 city | 37,862 1029.787 1823.31 0 9999 -------------+--------------------------------------------------------- milept | 37,862 14316.49 34683.04 0 99999 year | 37,862 2001 0 2001 2001 tway_id | 0 rail | 0 latitude | 30,899 36.99103 5.434611 19.12098 66.5504 -------------+--------------------------------------------------------- longitud | 30,902 -91.46654 16.00413 -1000.678 -67.06001 by Jean Roth , jroth@nber.org , 18 Apr 2016