Summary statistics for natl1984 dataset : by Jean Roth , jroth@nber.org , 3 Jan 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- datayear | 3,360,871 4 0 4 4 stresexp | 3,360,871 27.22202 14.6962 1 60 reparea | 0 rectype | 3,360,871 1.235093 .4240569 1 2 restatus | 3,360,871 1.262786 .5014837 1 4 -------------+--------------------------------------------------------- stateres | 0 cntyres | 0 cityres | 0 citrspop | 0 smsares | 0 -------------+--------------------------------------------------------- metrores | 0 divres | 3,360,871 4.840867 2.433253 0 9 stsubres | 3,360,871 51.85488 24.69945 0 95 statenat | 0 cntynat | 0 -------------+--------------------------------------------------------- divocc | 3,360,871 4.849568 2.42784 1 9 stsubocc | 3,360,871 51.94626 24.63877 11 95 csex | 3,360,871 1.487794 .4998511 1 2 birattnd | 3,360,871 1.022716 .2285736 1 4 frace | 3,360,871 2.137976 2.647533 0 9 -------------+--------------------------------------------------------- mrace | 3,360,871 1.246898 .8385367 0 9 crace | 3,360,871 1.23267 .7132073 0 8 crace3 | 3,360,871 1.361321 .7451084 1 3 dmage | 3,360,871 25.65029 5.364351 10 49 mage36 | 3,360,871 12.65096 5.362814 1 36 -------------+--------------------------------------------------------- mage15 | 3,360,871 12.31628 3.181917 1 17 mage12 | 3,360,871 8.562006 1.500963 1 13 mage8 | 3,360,871 3.730049 1.111272 1 8 mage7 | 3,360,871 3.729758 1.110284 1 7 mage6 | 3,360,871 2.732482 1.104799 1 6 -------------+--------------------------------------------------------- nlbnl | 3,360,871 1.461014 6.992117 0 99 nlbnd | 3,360,871 2.529288 15.54386 0 99 nlbd | 3,360,871 .8067778 7.192486 0 99 dtotord | 3,360,871 2.811127 7.27592 1 99 totord9 | 3,360,871 2.30712 1.472658 1 9 -------------+--------------------------------------------------------- dlivord | 3,360,871 2.492999 7.014299 1 99 livord9 | 3,360,871 2.028442 1.276902 1 9 livord8 | 3,360,871 2.014892 1.216508 1 8 livord7 | 3,360,871 2.005381 1.176559 1 7 livord6 | 3,360,871 1.983084 1.103521 1 6 -------------+--------------------------------------------------------- livord3 | 3,360,871 1.588127 .5024228 1 3 dfage | 3,360,871 38.25384 24.61226 10 99 fage11 | 3,360,871 5.254692 2.543363 1 11 dbirwt | 3,360,871 3359.109 648.6907 227 9999 birwt12 | 3,360,871 7.207254 1.241804 1 12 -------------+--------------------------------------------------------- birwt3 | 3,360,871 1.934039 .2536772 1 3 pldel | 3,360,871 1.013581 .1620334 1 9 dplural | 3,360,871 1.021012 .1465471 1 3 plural3 | 3,360,871 1.021012 .1465471 1 3 plural2 | 3,360,871 1.020559 .1419024 1 2 -------------+--------------------------------------------------------- birmon | 3,360,871 6.593027 3.411607 1 12 birday | 3,360,871 15.7827 8.798021 1 99 lmpmon | 3,360,871 9.959 17.5631 1 99 lmpday | 3,360,871 31.94461 34.35578 1 99 lmpyr | 0 -------------+--------------------------------------------------------- dgestat | 3,360,871 41.96132 12.37728 17 99 gestat10 | 3,360,871 6.942289 1.523693 1 10 gestat3 | 3,360,871 1.952921 .3611483 1 3 dmeduc | 3,360,871 28.7937 33.8155 0 99 meduc14 | 3,360,871 9.595532 2.929934 1 14 -------------+--------------------------------------------------------- meduc6 | 3,360,871 3.794144 1.418392 1 6 dfeduc | 3,360,871 39.34898 39.66891 0 99 feduc14 | 3,360,871 10.56467 3.030239 1 14 dmar | 3,360,871 1.21003 .4350417 1 9 mar2 | 3,360,871 1.206695 .4049348 1 2 -------------+--------------------------------------------------------- monprec | 0 mpre10 | 3,360,871 2.22909 2.015574 1 10 mpre6 | 3,360,871 1.863564 1.151083 1 6 llbmon | 3,360,871 43.69477 37.60239 1 99 llbyr | 3,360,871 80.2195 5.712836 1 99 -------------+--------------------------------------------------------- disllb | 3,360,871 429.9202 390.259 0 999 isllb17 | 3,360,871 7.237337 7.327821 0 21 isllb10 | 3,360,871 3.675019 3.607946 0 10 isllb8 | 3,360,871 2.972155 2.875659 0 8 lfdmon | 3,360,871 69.44555 25.12329 1 99 -------------+--------------------------------------------------------- lfdyr | 3,360,871 78.05479 3.660278 1 99 lfdflg | 3,360,871 .1317792 .3382506 0 1 dlfd | 3,360,871 698.1535 260.6145 0 999 dterm | 3,360,871 419.4879 404.249 0 999 term9 | 3,360,871 3.86327 3.357306 0 9 -------------+--------------------------------------------------------- outcome | 3,360,871 .8110835 .7182538 0 3 mplbir | 3,360,871 30.1974 16.31653 1 99 nprevis | 3,360,871 18.77384 25.82315 0 99 congen | 3,360,871 .0114768 .1065133 0 1 marstrflg | 3,360,871 .9988146 .0344093 0 1 -------------+--------------------------------------------------------- educstrflg | 3,360,871 .8225713 .3820312 0 1 lmprflg | 3,360,871 .9906965 .0960051 0 1 monprerflg | 3,360,871 .9988146 .0344093 0 1 llbrflg | 3,360,871 .9098531 .2863921 0 1 lfdrflg | 3,360,871 .9098531 .2863921 0 1 -------------+--------------------------------------------------------- marsmsarflg | 3,360,871 .7491597 .4334968 0 1 educsmsarflg | 3,360,871 .5901559 .4918048 0 1 congenrflg | 3,360,871 .8780941 .3271771 0 1 nprevisrflg | 3,360,871 .9320373 .251682 0 1 ethnicrflg | 3,360,871 .8412614 .8169849 0 2 -------------+--------------------------------------------------------- omapsrflg | 3,360,871 .8254066 .379619 0 1 fmapsrflg | 3,360,871 .8254066 .379619 0 1 marstoflg | 3,360,871 1 0 1 1 educstoflg | 3,360,871 1 0 1 1 lmpoflg | 3,360,871 1 0 1 1 -------------+--------------------------------------------------------- monpreoflg | 3,360,871 1 0 1 1 llboflg | 3,360,871 1 0 1 1 lfdoflg | 3,360,871 1 0 1 1 congenflg | 3,360,871 1 0 1 1 nprevisoflg | 3,360,871 1 0 1 1 -------------+--------------------------------------------------------- ethnicoflg | 3,360,871 .8451381 .8174351 0 2 omapsoflg | 3,360,871 1 0 1 1 fmapsoflg | 3,360,871 1 0 1 1 attend | 3,360,871 1.05115 .4004622 1 9 oterml20 | 3,360,871 13.51323 31.47336 0 99 -------------+--------------------------------------------------------- otermm20 | 3,360,871 13.30577 31.58024 0 99 omaps | 3,360,871 25.04861 35.54027 0 99 omapsr | 3,360,871 3.617137 .9222561 1 5 fmaps | 3,360,871 25.90586 35.15691 0 99 fmapsr | 3,360,871 4.064498 .5985432 1 5 -------------+--------------------------------------------------------- origm | 3,360,871 41.94129 41.82102 0 99 origf | 3,360,871 48.04175 42.87623 0 99 gestimp | 543,603 1 0 1 1 regnres | 3,360,871 2.491946 1.000401 0 4 regnocc | 3,360,871 2.495545 .9967776 1 4 -------------+--------------------------------------------------------- stoccfip | 0 cntocfip | 0 stresfip | 0 cntyrfip | 0 smsarfip | 0 -------------+--------------------------------------------------------- recwt | 3,360,871 1.09304 .2904892 1 2 nprev28 | 3,360,871 13.13094 5.995987 1 28 nprev12 | 3,360,871 6.9945 2.404834 1 12 stnatexp | 3,360,871 27.23872 14.67032 1 52 by Jean Roth , jroth@nber.org , 3 Jan 2016