Summary statistics for natl1970 dataset : by Jean Roth , jroth@nber.org , 3 Jan 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- datayear | 1,868,900 0 0 0 0 shipnum | 0 reparea | 0 rectype | 1,868,900 1.188998 .3915074 1 2 restatus | 1,868,900 1.216494 .4775425 1 4 -------------+--------------------------------------------------------- stateres | 0 cntyres | 0 cityres | 0 citrspop | 0 smsares | 0 -------------+--------------------------------------------------------- metrores | 0 divres | 1,868,900 4.7188 2.485884 0 9 stsubres | 1,868,900 50.51945 25.21504 0 95 statenat | 0 cntynat | 0 -------------+--------------------------------------------------------- divocc | 1,868,900 4.732575 2.480413 1 9 stsubocc | 1,868,900 50.65969 25.15088 11 95 csex | 1,868,900 1.486694 .499823 1 2 birattnd | 1,868,900 1.012897 .1626769 1 4 frace | 1,868,900 1.771313 2.1503 0 9 -------------+--------------------------------------------------------- mrace | 1,868,900 1.225387 .7127404 0 9 crace | 1,868,900 1.223061 .6643073 0 8 crace3 | 1,868,900 1.324425 .7248801 1 3 dmage | 1,868,900 24.61487 5.540756 10 49 mage36 | 1,868,900 11.61581 5.538799 1 36 -------------+--------------------------------------------------------- mage15 | 1,868,900 11.66113 3.37964 1 17 mage12 | 1,868,900 8.30046 1.587618 1 13 mage8 | 1,868,900 3.520028 1.145082 1 8 mage7 | 1,868,900 3.519185 1.142145 1 7 mage6 | 1,868,900 2.522331 1.136564 1 6 -------------+--------------------------------------------------------- nlbnl | 1,868,900 2.681613 9.622466 0 99 nlbnd | 1,868,900 3.098328 14.04783 0 99 nlbd | 1,868,900 3.116866 13.87238 0 99 dtotord | 1,868,900 3.648715 10.52839 1 99 totord9 | 1,868,900 2.552935 1.852008 1 9 -------------+--------------------------------------------------------- dlivord | 1,868,900 3.484994 10.43614 1 99 livord9 | 1,868,900 2.420504 1.748619 1 9 livord8 | 1,868,900 2.375693 1.613622 1 8 livord7 | 1,868,900 2.344025 1.522704 1 7 livord6 | 1,868,900 2.27602 1.364488 1 6 -------------+--------------------------------------------------------- livord3 | 1,868,900 1.628232 .5064462 1 3 flag77 | 19,900 1 0 1 1 dfage | 1,868,900 34.14201 21.18519 17 99 fage11 | 1,868,900 4.768883 2.334353 2 11 dbirwt | 1,868,900 3319.404 796.013 227 9999 -------------+--------------------------------------------------------- birwt12 | 1,868,900 7.082514 1.265938 1 12 birwt3 | 1,868,900 1.927588 .2829708 1 3 birmon | 1,868,900 6.63737 3.4389 1 12 birday | 1,868,900 15.79842 9.081009 1 99 lmpmon | 1,868,900 30.98951 37.85582 1 99 -------------+--------------------------------------------------------- lmpday | 1,868,900 45.77649 38.25683 1 99 lmpyr | 0 dgestat | 1,868,900 37.7669 30.36833 0 99 gestat10 | 1,868,900 5.489269 3.598726 0 10 gestat3 | 1,868,900 1.564868 1.02912 0 3 -------------+--------------------------------------------------------- dmeduc | 1,868,900 38.4337 36.50767 0 99 meduc14 | 1,868,900 5.333985 4.218791 0 14 meduc6 | 1,868,900 2.00942 1.678373 0 6 dfeduc | 1,868,900 44.28874 38.35024 0 99 feduc14 | 1,868,900 5.991422 4.90899 0 14 -------------+--------------------------------------------------------- dlegit | 1,868,900 3.41552 3.265244 1 9 legit3 | 1,868,900 .739169 .5795787 0 2 monprec | 0 mpre10 | 1,868,900 2.2449 2.379574 0 10 mpre6 | 0 -------------+--------------------------------------------------------- llbmon | 1,868,900 51.25341 38.32512 1 99 llbyr | 1,868,900 76.36154 9.949383 28 99 disllb | 1,868,900 506.6937 398.8537 0 999 isllb17 | 1,868,900 5.270417 6.647358 0 21 isllb10 | 1,868,900 2.720467 3.336893 0 10 -------------+--------------------------------------------------------- isllb8 | 1,868,900 2.211507 2.669463 0 8 lfdmon | 1,868,900 76.94544 17.78565 1 99 lfdyr | 1,868,900 79.49182 6.708189 0 99 fdflg | 1,868,900 .0588057 .2352608 0 1 dlfd | 1,868,900 775.4915 183.6898 0 999 -------------+--------------------------------------------------------- dterm | 1,868,900 519.1662 403.2526 0 999 term9 | 1,868,900 2.720492 3.21991 0 9 outcome | 1,868,900 .5801696 .7276253 0 3 mplbir | 1,868,900 29.18875 15.76982 1 99 congen | 1,868,900 .7855926 2.366151 0 8 -------------+--------------------------------------------------------- legitstrflg | 1,868,900 .6642431 .4722545 0 1 educstrflg | 1,868,900 .6697705 .4702958 0 1 lmprflg | 1,868,900 .7363278 .4406237 0 1 monprerflg | 1,868,900 .816933 .3867216 0 1 llbrflg | 1,868,900 .740054 .4386048 0 1 -------------+--------------------------------------------------------- lfdrflg | 1,868,900 .7147402 .4515382 0 1 legitsmsar~g | 1,868,900 .4059104 .4910675 0 1 educsmsarflg | 1,868,900 .4239681 .4941855 0 1 congenrflg | 1,868,900 .90042 .2994392 0 1 legitstoflg | 1,868,900 .6676125 .4710692 0 1 -------------+--------------------------------------------------------- educstoflg | 1,868,900 .6688924 .4706118 0 1 lmpoflg | 1,868,900 .7377061 .4398817 0 1 monpreoflg | 1,868,900 .8197795 .3843711 0 1 llboflg | 1,868,900 .7402606 .4384917 0 1 lfdoflg | 1,868,900 .7144775 .4516631 0 1 -------------+--------------------------------------------------------- congenflg | 1,868,900 .9030376 .2959066 0 1 by Jean Roth , jroth@nber.org , 3 Jan 2016