Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 36,937 27.32496 16.08158 1 56 county | 36,937 86.34348 91.73021 0 999 month | 36,937 6.749168 3.297357 1 12 day | 36,937 15.58302 8.971708 1 99 year | 36,937 91 0 91 91 -------------+--------------------------------------------------------- hour | 36,937 13.25757 10.73539 0 99 minute | 36,937 27.83393 18.69796 0 99 ve_forms | 36,937 1.483472 .7205363 1 30 persons | 36,937 2.690229 1.89361 1 59 fed_aid | 36,937 3.132712 1.38902 1 9 -------------+--------------------------------------------------------- road_fnc | 36,937 8.001245 6.165731 1 99 route | 36,937 3.551155 1.717244 1 9 sp_jur | 36,937 .0298887 .3447918 0 9 harm_ev | 36,937 16.88285 12.41209 1 99 man_coll | 36,937 1.135853 1.644741 0 9 -------------+--------------------------------------------------------- rel_junc | 36,937 1.763543 2.618508 1 99 rel_road | 36,937 2.477543 1.997763 1 9 traf_flo | 36,937 1.536589 1.156631 1 9 no_lanes | 36,937 2.499337 1.26742 1 9 sp_limit | 36,937 48.20559 13.41493 0 99 -------------+--------------------------------------------------------- alignmnt | 36,937 1.277175 .5684728 1 9 profile | 36,937 1.465712 1.160324 1 9 pave_typ | 36,937 2.23402 1.445167 1 9 sur_cond | 36,937 1.273087 .7976502 1 9 tra_cont | 36,937 5.096976 12.70844 0 99 -------------+--------------------------------------------------------- t_cont_f | 36,937 .6975391 1.298094 0 9 hit_run | 36,937 .0831416 .3918597 0 3 lgt_cond | 36,937 1.838969 1.00049 1 9 weather | 36,937 1.262745 .9174426 1 9 c_m_zone | 36,937 .0207651 .1860899 0 4 -------------+--------------------------------------------------------- not_hour | 36,937 39.36578 41.03539 0 99 not_min | 36,937 50.12746 36.48572 0 99 arr_hour | 36,937 36.14297 39.64923 0 99 arr_min | 36,937 47.81382 35.62294 0 99 hosp_hr | 36,937 50.58808 45.94761 0 99 -------------+--------------------------------------------------------- hosp_mn | 36,937 55.79284 43.07245 0 99 sch_bus | 36,937 .0032488 .0569061 0 1 cf1 | 36,937 .6588786 6.349446 0 99 cf2 | 36,937 .3729052 6.006804 0 99 cf3 | 36,937 .3646208 5.996266 0 99 -------------+--------------------------------------------------------- fatals | 36,937 1.123751 .4318179 1 10 day_week | 36,937 4.219238 2.137839 1 9 drunk_dr | 36,937 .4069361 .5309957 0 3 st_case | 36,937 274009.6 160632.4 10001 560107 milept | 36,937 11695.9 31797.17 0 99999 -------------+--------------------------------------------------------- city | 36,937 1000.458 1773.379 0 9999 tway_id | 0 rail | 0 peds | 36,937 .2074343 .5022863 0 20 by Jean Roth , jroth@nber.org , 18 Apr 2016