Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 37,494 27.57548 16.10687 1 56 county | 37,494 89.86699 95.31105 0 999 month | 37,494 6.766096 3.381671 1 12 day | 37,494 15.82456 9.010572 1 99 year | 37,494 96 0 96 96 -------------+--------------------------------------------------------- hour | 37,494 13.48072 10.58729 0 99 minute | 37,494 28.0969 18.65474 0 99 ve_forms | 37,494 1.529498 .777605 1 47 persons | 37,494 2.756361 1.958858 1 61 nhs | 37,494 .3469622 .7615323 0 9 -------------+--------------------------------------------------------- road_fnc | 37,494 8.143143 7.368142 1 99 route | 37,494 3.575105 1.810259 1 9 sp_jur | 37,494 .0316851 .3463023 0 9 harm_ev | 37,494 16.80135 12.4616 1 99 man_coll | 37,494 1.246146 1.708502 0 9 -------------+--------------------------------------------------------- rel_junc | 37,494 1.753587 2.926934 1 99 rel_road | 37,494 2.374753 1.914151 1 9 traf_flo | 37,494 1.49936 1.027812 1 9 no_lanes | 37,494 2.506934 1.219334 1 9 sp_limit | 37,494 49.51782 13.95549 0 99 -------------+--------------------------------------------------------- alignmnt | 37,494 1.279645 .6857836 1 9 profile | 37,494 1.467808 1.192136 1 9 pave_typ | 37,494 2.108551 1.167422 1 9 sur_cond | 37,494 1.307649 .8822957 1 9 tra_cont | 37,494 4.508828 11.99015 0 99 -------------+--------------------------------------------------------- t_cont_f | 37,494 .6942177 1.340784 0 9 hit_run | 37,494 .0687577 .3574591 0 3 lgt_cond | 37,494 1.796928 1.029553 1 9 weather | 37,494 1.296421 1.00134 1 9 c_m_zone | 37,494 .0238438 .216457 0 4 -------------+--------------------------------------------------------- not_hour | 37,494 39.08265 40.90013 0 99 not_min | 37,494 49.66336 36.63075 0 99 arr_hour | 37,494 34.99083 39.00342 0 99 arr_min | 37,494 48.3671 36.1821 0 99 hosp_hr | 37,494 50.42625 45.92814 0 99 -------------+--------------------------------------------------------- hosp_mn | 37,494 55.6305 43.11576 0 99 sch_bus | 37,494 .0031472 .056012 0 1 cf1 | 37,494 .7760442 6.144402 0 99 cf2 | 37,494 .3155972 5.490223 0 99 cf3 | 37,494 .3036486 5.474469 0 99 -------------+--------------------------------------------------------- fatals | 37,494 1.121913 .4215837 1 8 day_week | 37,494 4.16736 2.095822 1 9 drunk_dr | 37,494 .3327199 .4977832 0 4 st_case | 37,494 276491.5 160975.6 10001 560121 milept | 37,494 10479.86 30057.59 0 99999 -------------+--------------------------------------------------------- city | 37,494 974.4776 1790.248 0 9999 tway_id | 0 rail | 0 peds | 37,494 .1915506 .4766515 0 13 by Jean Roth , jroth@nber.org , 18 Apr 2016