Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 34,942 27.41497 16.05135 1 56 county | 34,942 87.22074 92.96857 0 997 month | 34,942 6.753363 3.358563 1 12 day | 34,942 15.6696 8.861172 1 99 year | 34,942 92 0 92 92 -------------+--------------------------------------------------------- hour | 34,942 13.40799 10.46459 0 99 minute | 34,942 27.86956 18.52609 0 99 ve_forms | 34,942 1.494677 .7106598 1 38 persons | 34,942 2.738567 1.994718 1 80 fed_aid | 34,942 3.345716 1.781966 1 9 -------------+--------------------------------------------------------- road_fnc | 34,942 8.399834 8.415127 1 99 route | 34,942 3.610698 1.776429 1 9 sp_jur | 34,942 .0275027 .3398901 0 9 harm_ev | 34,942 16.89855 12.30636 1 99 man_coll | 34,942 1.171913 1.664794 0 9 -------------+--------------------------------------------------------- rel_junc | 34,942 1.782897 2.922949 1 99 rel_road | 34,942 2.442648 1.961016 1 9 traf_flo | 34,942 1.513079 1.115667 1 9 no_lanes | 34,942 2.469378 1.190779 1 9 sp_limit | 34,942 48.03517 13.13779 0 99 -------------+--------------------------------------------------------- alignmnt | 34,942 1.276458 .5853847 1 9 profile | 34,942 1.461593 1.127817 1 9 pave_typ | 34,942 2.179927 1.338116 1 9 sur_cond | 34,942 1.282039 .7847446 1 9 tra_cont | 34,942 5.319959 12.90576 0 99 -------------+--------------------------------------------------------- t_cont_f | 34,942 .7217961 1.308801 0 9 hit_run | 34,942 .0737794 .3707871 0 3 lgt_cond | 34,942 1.831464 .9995347 1 9 weather | 34,942 1.270591 .8981593 1 9 c_m_zone | 34,942 .0216072 .1971932 0 4 -------------+--------------------------------------------------------- not_hour | 34,942 39.26624 40.85838 0 99 not_min | 34,942 49.97504 36.37559 0 99 arr_hour | 34,942 36.15832 39.48007 0 99 arr_min | 34,942 47.9053 35.45143 0 99 hosp_hr | 34,942 49.79071 45.69659 0 99 -------------+--------------------------------------------------------- hosp_mn | 34,942 55.33939 42.71936 0 99 sch_bus | 34,942 .0032625 .0570263 0 1 cf1 | 34,942 .6258371 6.112925 0 99 cf2 | 34,942 .3420239 5.752903 0 99 cf3 | 34,942 .3349837 5.744236 0 99 -------------+--------------------------------------------------------- fatals | 34,942 1.12329 .4290764 1 8 day_week | 34,942 4.208374 2.118224 1 9 drunk_dr | 34,942 .3871272 .5237369 0 3 st_case | 34,942 274854.8 160371.9 10001 560099 milept | 34,906 10677.59 30483.01 0 99999 -------------+--------------------------------------------------------- city | 34,942 1018.648 1808.917 0 9999 tway_id | 0 rail | 0 peds | 34,942 .2096045 .73123 0 79 by Jean Roth , jroth@nber.org , 18 Apr 2016