Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 37,241 27.2135 16.04961 1 56 county | 37,241 86.93829 89.58912 1 840 month | 37,241 6.787841 3.364648 1 12 day | 37,241 15.53975 8.927241 1 99 year | 37,241 95 0 95 95 -------------+--------------------------------------------------------- hour | 37,241 13.54351 10.79133 0 99 minute | 37,241 28.08048 18.754 0 99 ve_forms | 37,241 1.51779 .7548708 1 32 persons | 37,241 2.741656 1.987592 1 65 nhs | 37,241 .3399479 .6433219 0 9 -------------+--------------------------------------------------------- road_fnc | 37,241 8.322628 8.286568 1 99 route | 37,241 3.58355 1.747549 1 9 sp_jur | 37,241 .0378346 .415001 0 9 harm_ev | 37,241 16.90199 12.43525 1 99 man_coll | 37,241 1.220107 1.694963 0 9 -------------+--------------------------------------------------------- rel_junc | 37,241 1.796112 3.35529 1 99 rel_road | 37,241 2.390806 1.931147 1 9 traf_flo | 37,241 1.492334 1.055496 1 9 no_lanes | 37,241 2.504605 1.237672 1 9 sp_limit | 37,241 48.39781 12.90747 0 99 -------------+--------------------------------------------------------- alignmnt | 37,241 1.279719 .679435 1 9 profile | 37,241 1.477243 1.216064 1 9 pave_typ | 37,241 2.12062 1.159236 1 9 sur_cond | 37,241 1.289412 .8597816 1 9 tra_cont | 37,241 4.57093 12.26275 0 99 -------------+--------------------------------------------------------- t_cont_f | 37,241 .6945839 1.341943 0 9 hit_run | 37,241 .0697081 .3601019 0 3 lgt_cond | 37,241 1.807094 1.044372 1 9 weather | 37,241 1.277087 .9698148 1 9 c_m_zone | 37,241 .0239789 .2116116 0 4 -------------+--------------------------------------------------------- not_hour | 37,241 40.45627 41.37348 0 99 not_min | 37,241 50.82449 36.94548 0 99 arr_hour | 37,241 36.16809 39.54926 0 99 arr_min | 37,241 49.49494 36.40685 0 99 hosp_hr | 37,241 51.50133 45.989 0 99 -------------+--------------------------------------------------------- hosp_mn | 37,241 56.35445 43.28305 0 99 sch_bus | 37,241 .0029806 .0545141 0 1 cf1 | 37,241 .5531806 4.365974 0 99 cf2 | 37,241 .1346366 3.47416 0 99 cf3 | 37,241 .1200021 3.440084 0 99 -------------+--------------------------------------------------------- fatals | 37,241 1.122875 .4345981 1 10 day_week | 37,241 4.181198 2.113364 1 9 drunk_dr | 37,241 .3383636 .497396 0 4 st_case | 37,241 272858.9 160354 10001 560138 milept | 37,241 10318.9 29876.87 0 99999 -------------+--------------------------------------------------------- city | 37,241 944.9678 1759.03 0 9999 tway_id | 0 rail | 0 peds | 37,241 .2008002 .5340303 0 38 by Jean Roth , jroth@nber.org , 18 Apr 2016