Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 42,130 27.21619 15.9911 1 56 county | 42,130 85.16295 91.07425 0 997 month | 42,130 6.821885 3.333253 1 12 day | 42,130 15.73109 8.902614 1 99 year | 42,130 88 0 88 88 -------------+--------------------------------------------------------- hour | 42,130 13.27759 10.5898 0 99 minute | 42,130 27.57489 18.49672 0 99 ve_forms | 42,130 1.488322 .6806333 1 17 persons | 42,130 2.681177 1.833743 1 70 fed_aid | 42,130 3.155234 1.47097 1 9 -------------+--------------------------------------------------------- road_fnc | 42,130 7.944054 5.882668 1 99 route | 42,130 3.632898 1.824509 1 9 sp_jur | 42,130 .0268455 .3223144 0 9 harm_ev | 42,130 16.44337 12.17144 1 99 man_coll | 42,130 1.152433 1.656181 0 9 -------------+--------------------------------------------------------- rel_junc | 42,130 1.471493 1.06398 1 9 rel_road | 42,130 2.392832 1.90274 1 9 traf_flo | 42,130 1.448137 .9407824 1 9 no_lanes | 42,130 2.442013 1.100461 1 9 sp_limit | 42,130 47.95587 13.59103 0 99 -------------+--------------------------------------------------------- alignmnt | 42,130 1.281177 .575377 1 9 profile | 42,130 1.410871 1.01284 1 9 pave_typ | 42,130 2.17503 1.305915 1 9 sur_cond | 42,130 1.252718 .760665 1 9 tra_cont | 42,130 4.017755 11.35455 0 99 -------------+--------------------------------------------------------- t_cont_f | 42,130 .6016378 1.238753 0 9 hit_run | 42,130 .0768099 .3774307 0 3 lgt_cond | 42,130 1.848849 1.020191 1 9 weather | 42,130 1.231878 .8473932 1 9 c_m_zone | 42,130 .0224068 .2074389 0 4 -------------+--------------------------------------------------------- not_hour | 42,130 38.62742 40.85413 0 99 not_min | 42,130 49.2395 36.58043 0 99 arr_hour | 42,130 36.33404 39.83779 0 99 arr_min | 42,130 47.72295 36.00118 0 99 hosp_hr | 42,130 55.81866 45.97508 0 99 -------------+--------------------------------------------------------- hosp_mn | 42,130 60.41545 42.9266 0 99 sch_bus | 42,130 .0028246 .0530724 0 1 cf1 | 42,130 .4802991 5.9916 0 99 cf2 | 42,130 .3474958 5.83941 0 99 cf3 | 42,130 .3460005 5.838432 0 99 -------------+--------------------------------------------------------- fatals | 42,130 1.11766 .4341234 1 27 day_week | 42,130 4.249371 2.131755 1 9 drunk_dr | 42,130 .4253501 .5415562 0 4 st_case | 42,130 273050.8 159672.5 10001 560131 milept | 42,130 14558.56 34909.95 0 99999 -------------+--------------------------------------------------------- city | 42,130 1014.629 1782.105 0 9999 tway_id | 0 rail | 0 by Jean Roth , jroth@nber.org , 18 Apr 2016