Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 37,324 27.69339 16.01708 1 56 county | 37,324 88.99847 93.90807 0 999 month | 37,324 6.719751 3.379959 1 12 day | 37,324 15.70413 9.000296 1 99 year | 37,324 97 0 97 97 -------------+--------------------------------------------------------- hour | 37,324 13.50397 10.67515 0 99 minute | 37,324 28.09624 18.67253 0 99 ve_forms | 37,324 1.528775 .719625 1 37 persons | 37,324 2.738104 1.8566 1 46 nhs | 37,324 .311435 .5199933 0 9 -------------+--------------------------------------------------------- road_fnc | 37,324 7.85366 6.115248 1 99 route | 37,324 3.557791 1.806151 1 9 sp_jur | 37,324 .0340799 .3788422 0 9 harm_ev | 37,324 16.87024 12.43702 1 99 man_coll | 37,324 1.267228 1.711993 0 9 -------------+--------------------------------------------------------- rel_junc | 37,324 1.777275 2.989382 1 99 rel_road | 37,324 2.354062 1.903269 1 9 traf_flo | 37,324 1.503001 1.04031 1 9 no_lanes | 37,324 2.503483 1.242856 1 9 sp_limit | 37,324 49.9574 14.5235 0 99 -------------+--------------------------------------------------------- alignmnt | 37,324 1.284991 .6839953 1 9 profile | 37,324 1.495311 1.263378 1 9 pave_typ | 37,324 2.155074 1.277343 1 9 sur_cond | 37,324 1.302888 .8831292 1 9 tra_cont | 37,324 4.379139 11.72771 0 99 -------------+--------------------------------------------------------- t_cont_f | 37,324 .6890205 1.339063 0 9 hit_run | 37,324 .0699014 .3612469 0 3 lgt_cond | 37,324 1.791555 1.056762 1 9 weather | 37,324 1.286545 .9950767 1 9 c_m_zone | 37,324 .0218358 .2025481 0 4 -------------+--------------------------------------------------------- not_hour | 37,324 38.68382 40.65025 0 99 not_min | 37,324 49.35519 36.39356 0 99 arr_hour | 37,324 34.9589 38.89199 0 99 arr_min | 37,324 47.79793 35.78897 0 99 hosp_hr | 37,324 50.195 45.85309 0 99 -------------+--------------------------------------------------------- hosp_mn | 37,324 55.40012 43.08996 0 99 sch_bus | 37,324 .0031079 .0556628 0 1 cf1 | 37,324 .5920587 4.90833 0 99 cf2 | 37,324 .1882703 4.158432 0 99 cf3 | 37,324 .1725163 4.127909 0 99 -------------+--------------------------------------------------------- fatals | 37,324 1.12563 .4387252 1 11 day_week | 37,324 4.162657 2.099177 1 9 drunk_dr | 37,324 .3118369 .4865506 0 3 st_case | 37,324 277635.8 160093 10001 560118 milept | 37,324 11407.01 31369.56 0 99999 -------------+--------------------------------------------------------- city | 37,324 1028.273 1816.749 0 9999 tway_id | 0 rail | 0 peds | 37,324 .1914854 .4812608 0 14 by Jean Roth , jroth@nber.org , 18 Apr 2016