Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 38,477 27.43499 16.15495 1 56 county | 38,477 89.21057 91.17886 0 999 month | 38,477 6.771266 3.356871 1 12 day | 38,477 15.70556 8.990328 1 99 hour | 38,477 13.52356 11.1542 0 99 -------------+--------------------------------------------------------- minute | 38,477 28.74229 18.83119 0 99 ve_forms | 38,477 1.530187 .7700636 1 45 persons | 38,477 2.647348 1.967137 1 85 peds | 38,477 .1661252 .6064792 0 74 nhs | 38,477 .3370065 .6886165 0 9 -------------+--------------------------------------------------------- road_fnc | 38,477 8.148062 7.459551 1 99 route | 38,477 3.573382 1.830112 1 9 sp_jur | 38,477 .0305897 .3433156 0 9 harm_ev | 38,477 17.30597 12.83955 1 99 man_coll | 38,477 1.637238 4.691913 0 99 -------------+--------------------------------------------------------- rel_junc | 38,477 1.854017 3.349791 1 99 rel_road | 38,477 2.564415 4.904525 1 99 traf_flo | 38,477 1.63204 1.202931 1 9 no_lanes | 38,477 2.520389 1.206026 1 9 sp_limit | 38,477 50.92861 14.9672 0 99 -------------+--------------------------------------------------------- alignmnt | 38,477 1.310289 .7902234 1 9 profile | 38,477 1.572238 1.509306 1 9 pave_typ | 38,477 2.300075 1.563479 1 9 sur_cond | 38,477 1.284352 .8601973 1 9 tra_cont | 38,477 4.470437 11.7785 0 99 -------------+--------------------------------------------------------- t_cont_f | 38,477 .6949866 1.345621 0 9 hit_run | 38,477 .072147 .3799243 0 4 lgt_cond | 38,477 1.785378 1.047793 1 9 weather | 38,477 1.299686 1.083207 1 9 c_m_zone | 38,477 .0334486 .243106 0 4 -------------+--------------------------------------------------------- not_hour | 38,477 41.5161 41.83115 0 99 not_min | 38,477 51.55914 37.25376 0 99 arr_hour | 38,477 40.46789 41.45648 0 99 arr_min | 38,477 52.99826 37.51174 0 99 hosp_hr | 38,477 52.54708 46.11257 0 99 -------------+--------------------------------------------------------- hosp_mn | 38,477 57.19505 43.46771 0 99 sch_bus | 38,477 .0033527 .0578057 0 1 cf1 | 38,477 .9810276 6.471406 0 99 cf2 | 38,477 .3322504 5.554708 0 99 cf3 | 38,477 .3123424 5.526045 0 99 -------------+--------------------------------------------------------- fatals | 38,477 1.114536 .4144896 1 10 day_week | 38,477 4.147777 2.110571 1 9 drunk_dr | 38,477 .4033319 .6183949 0 8 st_case | 38,477 275119.1 161438.5 10001 560141 city | 38,477 1046.214 1857.556 0 9999 -------------+--------------------------------------------------------- milept | 38,477 13189.58 33418.89 -40 99999 year | 38,477 2003 0 2003 2003 tway_id | 0 rail | 0 latitude | 35,710 36.89037 5.241015 19.22057 66.56392 -------------+--------------------------------------------------------- longitud | 35,710 -91.88085 14.94432 -165.4078 -67.14442 by Jean Roth , jroth@nber.org , 18 Apr 2016