Summary statistics for accident dataset : by Jean Roth , jroth@nber.org , 18 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 37,435 27.38306 16.24692 1 56 county | 37,435 90.01437 93.68789 0 840 month | 37,435 6.62324 3.352794 1 12 day | 37,435 15.61779 8.82619 1 31 hour | 37,435 13.23772 10.64607 0 99 -------------+--------------------------------------------------------- minute | 37,435 29.03291 18.80741 0 99 ve_total | 37,435 1.538159 1.018006 1 92 persons | 37,435 2.520048 2.160839 1 158 peds | 37,435 .1584346 .4101521 0 11 nhs | 37,435 .3261654 .634436 0 9 -------------+--------------------------------------------------------- road_fnc | 37,435 8.277842 6.936375 1 99 route | 37,435 3.555763 1.753071 1 9 sp_jur | 37,435 .0332042 .3622297 0 9 harm_ev | 37,435 18.02223 13.5452 1 99 man_coll | 37,435 1.592414 4.809373 0 99 -------------+--------------------------------------------------------- rel_junc | 37,435 1.787899 2.759006 1 99 rel_road | 37,435 2.505757 4.37952 1 99 traf_flo | 37,435 1.689061 1.270982 1 9 no_lanes | 37,435 2.5193 1.203577 1 9 sp_limit | 37,435 50.53298 14.99691 0 99 -------------+--------------------------------------------------------- alignmnt | 37,435 1.323307 .7248852 1 9 profile | 37,435 1.439936 1.120173 1 9 pave_typ | 37,435 2.109016 1.093411 1 9 sur_cond | 37,435 1.268091 .8931156 1 9 tra_cont | 37,435 4.144597 11.0544 0 99 -------------+--------------------------------------------------------- t_cont_f | 37,435 .6756244 1.310954 0 9 hit_run | 37,435 .084413 .4243628 0 5 lgt_cond | 37,435 1.819287 1.065751 1 9 weather1 | 37,435 1.238013 .9331921 1 9 weather2 | 37,435 .0158675 .270575 0 8 -------------+--------------------------------------------------------- c_m_zone | 37,435 .0290103 .247037 0 4 not_hour | 37,435 45.32272 43.03728 0 99 not_min | 37,435 54.80222 38.01987 0 99 arr_hour | 37,435 44.85922 42.9258 0 99 arr_min | 37,435 56.29005 38.3915 0 99 -------------+--------------------------------------------------------- hosp_hr | 37,435 55.45089 46.44457 0 99 hosp_mn | 37,435 59.37046 43.99291 0 99 sch_bus | 37,435 .0032323 .0567619 0 1 cf1 | 37,435 .7596367 4.929387 0 99 cf2 | 37,435 .1613463 3.738341 0 99 -------------+--------------------------------------------------------- cf3 | 37,435 .1393081 3.691055 0 99 fatals | 37,435 1.10215 .3890284 1 12 day_week | 37,435 4.118926 2.125406 1 7 drunk_dr | 37,435 .422332 .6151836 0 9 st_case | 37,435 274582.4 162343.1 10001 560137 -------------+--------------------------------------------------------- city | 37,435 1081.389 1845.541 0 9999 milept | 37,435 15132.98 35563.7 0 99999 year | 37,435 2007 0 2007 2007 tway_id | 0 tway_id2 | 0 -------------+--------------------------------------------------------- rail | 0 ve_forms | 37,435 1.502685 .9841464 1 92 weather | 37,435 1.238119 .9324489 1 9 latitude | 36,448 36.75256 5.131303 19.04782 66.04445 longitud | 36,448 -92.18156 15.03026 -164.65 -67.28309 by Jean Roth , jroth@nber.org , 18 Apr 2016