Summary statistics for parkwork dataset : by Jean Roth , jroth@nber.org , 22 Oct 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 1,084 27.20941 15.99306 1 56 st_case | 1,084 272861.9 159787.4 10007 560111 veh_no | 1,084 2.718635 1.386914 1 14 pve_forms | 1,084 1.320111 .6888651 1 6 pnumoccs | 1,084 .2361624 .628312 0 6 -------------+--------------------------------------------------------- pday | 1,084 15.97417 8.760551 1 31 pmonth | 1,084 7.043358 3.316898 1 12 phour | 1,084 12.14207 7.593804 0 99 pminute | 1,084 28.66144 17.64592 0 99 pharm_ev | 1,084 18.73339 12.62953 1 72 -------------+--------------------------------------------------------- pman_coll | 1,084 .9520295 2.173777 0 11 ptype | 1,084 2.440959 .5629541 2 4 phit_run | 1,084 .001845 .0429338 0 1 preg_stat | 1,084 29.14852 20.46823 0 99 powner | 1,084 5.886531 .6279452 0 6 -------------+--------------------------------------------------------- pmake | 1,084 34.88376 25.79233 2 99 pmodel | 1,084 361.0526 311.9543 1 999 pmak_mod | 1,084 35244.82 25927.2 2403 99999 pbodytyp | 1,084 23.64483 23.26666 1 99 pmodyear | 1,084 2084.688 801.73 1960 9999 -------------+--------------------------------------------------------- pvin | 0 pvin_1 | 0 pvin_2 | 0 pvin_3 | 0 pvin_4 | 0 -------------+--------------------------------------------------------- pvin_5 | 0 pvin_6 | 0 pvin_7 | 0 pvin_8 | 0 pvin_9 | 0 -------------+--------------------------------------------------------- pvin_10 | 0 pvin_11 | 0 pvin_12 | 0 ptrailer | 1,084 .1217712 .5065829 0 9 pmcarr_i1 | 1,084 10.82565 25.57862 0 99 -------------+--------------------------------------------------------- pmcarr_i2 | 0 pmcarr_id | 0 pgvwr | 1,084 .4667897 1.095531 0 9 pv_config | 1,084 .8699262 3.924337 0 99 pcargtyp | 1,084 6.426199 23.53715 0 98 -------------+--------------------------------------------------------- phaz_inv | 1,084 1.000923 .0303728 1 2 phazplac | 1,084 .001845 .0607457 0 2 phaz_id | 1,084 1.128229 37.14598 0 1223 phaz_cno | 1,084 .0027675 .0911185 0 3 phaz_rel | 1,084 .0009225 .0303728 0 1 -------------+--------------------------------------------------------- pbus_use | 1,084 .1079336 3.0229 0 99 psp_use | 1,084 .1411439 3.061301 0 99 pem_use | 1,084 .0083026 .1743615 0 5 punderide | 1,084 0 0 0 0 pimpact1 | 1,084 18.17712 26.10243 1 99 -------------+--------------------------------------------------------- pveh_sev | 1,084 4.559963 2.156204 0 9 ptowed | 1,084 4.186347 1.749385 2 9 pm_harm | 1,084 12.64945 5.3721 1 99 pveh_sc1 | 1,084 .304428 4.157732 0 99 pveh_sc2 | 1,084 .0913284 3.006911 0 99 -------------+--------------------------------------------------------- pfire | 1,084 .0055351 .074226 0 1 pdeaths | 1,084 .0276753 .1641164 0 1 by Jean Roth , jroth@nber.org , 22 Oct 2016