Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 38,648 27.06277 16.28634 1 56 county | 38,648 88.18221 91.96623 0 840 month | 38,648 6.642595 3.369263 1 12 day | 38,648 15.54608 8.758151 1 31 hour | 38,648 13.19225 10.38597 0 99 -------------+--------------------------------------------------------- minute | 38,648 28.88977 18.68877 0 99 ve_total | 38,648 1.5392 .7628563 1 22 persons | 38,648 2.544918 1.821618 1 53 peds | 38,648 .1602929 .4236393 0 10 nhs | 38,648 .3643914 .8406459 0 9 -------------+--------------------------------------------------------- road_fnc | 38,648 8.730646 9.02823 1 99 route | 38,648 3.576071 1.803318 1 9 sp_jur | 38,648 .0391223 .4238487 0 9 harm_ev | 38,648 18.00652 13.68642 1 99 man_coll | 38,648 1.5991 4.571018 0 99 -------------+--------------------------------------------------------- rel_junc | 38,648 1.922764 4.547067 1 99 rel_road | 38,648 2.567507 5.157132 1 99 traf_flo | 38,648 1.696854 1.257846 1 9 no_lanes | 38,648 2.501966 1.158018 1 9 sp_limit | 38,648 50.61532 15.02892 0 99 -------------+--------------------------------------------------------- alignmnt | 38,648 1.310029 .7148176 1 9 profile | 38,648 1.437616 1.137591 1 9 pave_typ | 38,648 2.084584 1.028012 1 9 sur_cond | 38,648 1.239676 .8492755 1 9 tra_cont | 38,648 4.562332 12.23315 0 99 -------------+--------------------------------------------------------- t_cont_f | 38,648 .7043055 1.368755 0 9 hit_run | 38,648 .0832902 .4247038 0 5 lgt_cond | 38,648 1.824622 1.076105 1 9 weather | 38,648 1.222288 .916654 1 9 c_m_zone | 38,648 .0348272 .2733221 0 4 -------------+--------------------------------------------------------- not_hour | 38,648 44.09447 42.70994 0 99 not_min | 38,648 53.82361 37.78003 0 99 arr_hour | 38,648 43.95275 42.68812 0 99 arr_min | 38,648 55.5347 38.25692 0 99 hosp_hr | 38,648 54.685 46.46749 0 99 -------------+--------------------------------------------------------- hosp_mn | 38,648 58.6996 44.02645 0 99 sch_bus | 38,648 .0033637 .0579005 0 1 cf1 | 38,648 .9893397 6.238358 0 99 cf2 | 38,648 .2923567 5.230099 0 99 cf3 | 38,648 .2748396 5.202969 0 99 -------------+--------------------------------------------------------- fatals | 38,648 1.105051 .3922917 1 10 day_week | 38,648 4.116668 2.121549 1 7 drunk_dr | 38,648 .4027634 .5994319 0 8 st_case | 38,648 271406.6 162704.1 10001 560169 city | 38,648 1091.342 1847.839 0 9999 -------------+--------------------------------------------------------- milept | 38,648 15142.56 35556.15 0 99999 year | 38,648 2006 0 2006 2006 tway_id | 0 tway_id2 | 0 rail | 0 -------------+--------------------------------------------------------- ve_forms | 38,648 1.503157 .7256027 1 22 latitude | 37,347 36.68146 5.110435 19.04346 71.324 longitud | 37,347 -92.41315 15.11984 -162.2792 -67.1035 by Jean Roth , jroth@nber.org , 18 Apr 2016