Summary statistics for accident dataset :

by Jean Roth , jroth@nber.org , 18 Apr 2016

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       state |        492          43           0         43         43
      county |        492          72           0         72         72
       month |        492    6.339431    3.562167          1         12
         day |        492    15.48984    8.946657          1         31
        hour |        492    12.75407    7.512006          0         23
-------------+---------------------------------------------------------
      minute |        492    24.68293    16.96447          0         58
    ve_forms |        492    1.345528    .5401594          1          3
     persons |        492    2.256098    1.121655          1          9
        peds |        492    .4166667    .5482491          0          4
         nhs |        492    .2154472    .4115506          0          1
-------------+---------------------------------------------------------
    road_fnc |        492    8.579268    5.412121          1         16
       route |        492    3.441057     1.18656          1          6
      sp_jur |        492     .004065     .090167          0          2
     harm_ev |        492    15.68902    11.24957          1         43
    man_coll |        492    .9898374     1.88733          0          9
-------------+---------------------------------------------------------
    rel_junc |        492    1.038618    .1928786          1          2
    rel_road |        492    2.457317    2.147373          1          6
    traf_flo |        492    2.095528    .6701524          1          4
    no_lanes |        492    2.587398    1.089892          1          6
    sp_limit |        492    40.22358    10.96425         20         65
-------------+---------------------------------------------------------
    alignmnt |        492    1.193089    .3951243          1          2
     profile |        492    1.315041    .6256055          1          3
    pave_typ |        492    1.943089    .2319075          1          2
    sur_cond |        492    1.128049    .3344842          1          2
    tra_cont |        492     .703252    3.659286          0         20
-------------+---------------------------------------------------------
    t_cont_f |        492    .1158537    .5786358          0          3
     hit_run |        492    .1768293    .5593418          0          2
    lgt_cond |        492    2.091463    .9772193          1          5
     weather |        492    1.123984    .3298984          1          2
    c_m_zone |        492    .0101626    .1003983          0          1
-------------+---------------------------------------------------------
    not_hour |        492    43.62195    47.17212          0         99
     not_min |        492    46.04472    46.24276          0         99
    arr_hour |        492    44.15854    47.29445          0         99
     arr_min |        492     47.5752    45.98893          0         99
     hosp_hr |        492    53.32317    49.40237          0         99
-------------+---------------------------------------------------------
     hosp_mn |        492    53.32317    49.40237          0         99
     sch_bus |        492    .0020325    .0450835          0          1
         cf1 |        492           0           0          0          0
         cf2 |        492           0           0          0          0
         cf3 |        492           0           0          0          0
-------------+---------------------------------------------------------
      fatals |        492    1.052846    .2497494          1          3
    day_week |        492    4.343496    2.204859          1          7
    drunk_dr |        492    .4898374    .6397383          0          3
     st_case |        492    430247.4    143.0087     430001     430494
        city |        492    546.6057    328.2259         10       1060
-------------+---------------------------------------------------------
      milept |        492    3284.955    17173.95          0      99999
        year |        492        2002           0       2002       2002
     tway_id |          0
        rail |          0
    latitude |          0
-------------+---------------------------------------------------------
    longitud |          0

by Jean Roth , jroth@nber.org , 18 Apr 2016