Summary statistics for natl1986 dataset : by Jean Roth , jroth@nber.org , 3 Jan 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- datayear | 3,760,695 6 0 6 6 stresexp | 3,760,695 25.26092 15.32603 1 60 reparea | 0 rectype | 3,760,695 1.231116 .4215465 1 2 restatus | 3,760,695 1.258168 .4978231 1 4 -------------+--------------------------------------------------------- stateres | 0 cntyres | 0 cityres | 0 citrspop | 0 smsares | 0 -------------+--------------------------------------------------------- metrores | 0 divres | 3,760,695 5.128456 2.559957 0 9 stsubres | 3,760,695 54.79624 25.91082 0 95 statenat | 0 cntynat | 0 -------------+--------------------------------------------------------- divocc | 3,760,695 5.137393 2.554523 1 9 stsubocc | 3,760,695 54.89179 25.84936 11 95 csex | 3,760,695 1.487598 .4998462 1 2 birattnd | 3,760,695 1.020866 .2201438 1 4 frace | 3,760,695 2.185249 2.691206 0 9 -------------+--------------------------------------------------------- mrace | 3,760,695 1.255387 .8580072 0 9 crace | 3,760,695 1.252775 .7863906 0 8 crace3 | 3,760,695 1.374308 .7514148 1 3 dmage | 3,760,695 25.96702 5.480211 10 49 mage36 | 3,760,695 12.96764 5.478788 1 36 -------------+--------------------------------------------------------- mage15 | 3,760,695 12.4487 3.17497 1 17 mage12 | 3,760,695 8.627186 1.519755 1 13 mage8 | 3,760,695 3.79266 1.131658 1 8 mage7 | 3,760,695 3.792326 1.130565 1 7 mage6 | 3,760,695 2.795032 1.125061 1 6 -------------+--------------------------------------------------------- nlbnl | 3,760,695 1.489664 7.118319 0 99 nlbnd | 3,760,695 .5455867 7.172553 0 99 nlbd | 3,760,695 .8587655 7.460715 0 99 dtotord | 3,760,695 2.879217 7.579928 1 99 totord9 | 3,760,695 2.331978 1.489819 1 9 -------------+--------------------------------------------------------- dlivord | 3,760,695 2.52573 7.173245 1 99 livord9 | 3,760,695 2.040019 1.281784 1 9 livord8 | 3,760,695 2.026512 1.221681 1 8 livord7 | 3,760,695 2.016956 1.181622 1 7 livord6 | 3,760,695 1.994681 1.108998 1 6 -------------+--------------------------------------------------------- livord3 | 3,760,695 1.591753 .5022626 1 3 dfage | 3,760,695 38.88942 24.86487 10 99 fage11 | 3,760,695 5.344457 2.558274 1 11 dbirwt | 3,760,695 3357.829 651.1622 227 9999 birwt12 | 3,760,695 7.204249 1.244745 1 12 -------------+--------------------------------------------------------- birwt3 | 3,760,695 1.933412 .2548781 1 3 pldel | 3,760,695 1.013051 .1693711 1 9 dplural | 3,760,695 1.022124 .1503361 1 3 plural3 | 3,760,695 1.022124 .1503361 1 3 plural2 | 3,760,695 1.021641 .1455082 1 2 -------------+--------------------------------------------------------- birmon | 3,760,695 6.559488 3.41131 1 12 birday | 3,760,695 15.76398 8.786723 1 99 lmpmon | 3,760,695 9.719181 16.94687 1 99 lmpday | 3,760,695 30.76271 33.50715 1 99 lmpyr | 0 -------------+--------------------------------------------------------- dgestat | 3,760,695 41.7425 12.15587 17 99 gestat10 | 3,760,695 6.87433 1.516333 1 10 gestat3 | 3,760,695 1.94536 .3653885 1 3 dmeduc | 3,760,695 33.40864 36.98493 0 99 meduc14 | 3,760,695 9.919925 3.026978 1 14 -------------+--------------------------------------------------------- meduc6 | 3,760,695 3.955433 1.4712 1 6 dfeduc | 3,760,695 43.89698 41.26472 0 99 feduc14 | 3,760,695 10.8427 3.036439 1 14 dmar | 3,760,695 1.236389 .4464152 1 9 mar2 | 3,760,695 1.233706 .4231875 1 2 -------------+--------------------------------------------------------- monprec | 0 mpre10 | 3,760,695 2.259114 2.06717 1 10 mpre6 | 3,760,695 1.872852 1.17308 1 6 llbmon | 3,760,695 43.26361 37.56663 1 99 llbyr | 3,760,695 81.19892 5.774716 1 99 -------------+--------------------------------------------------------- disllb | 3,760,695 425.8073 389.5848 0 999 isllb17 | 3,760,695 7.276768 7.330739 0 21 isllb10 | 3,760,695 3.70346 3.615948 0 10 isllb8 | 3,760,695 2.994145 2.879281 0 8 lfdmon | 3,760,695 69.37196 25.36203 1 99 -------------+--------------------------------------------------------- lfdyr | 3,760,695 78.54236 4.253273 2 99 lfdflg | 3,760,695 .1338992 .340544 0 1 dlfd | 3,760,695 697.398 262.8868 0 999 dterm | 3,760,695 419.1033 404.6693 0 999 term9 | 3,760,695 3.90111 3.372022 0 9 -------------+--------------------------------------------------------- outcome | 3,760,695 .8261289 .7334516 0 3 mplbir | 3,760,695 30.03197 17.18525 1 99 nprevis | 3,760,695 24.19079 31.88312 0 99 congen | 3,760,695 .0110578 .1045731 0 1 marstrflg | 3,760,695 .998897 .0331929 0 1 -------------+--------------------------------------------------------- educstrflg | 3,760,695 .7705504 .4204789 0 1 lmprflg | 3,760,695 .998897 .0331929 0 1 monprerflg | 3,760,695 .998897 .0331929 0 1 llbrflg | 3,760,695 .9172456 .2755106 0 1 lfdrflg | 3,760,695 .9172456 .2755106 0 1 -------------+--------------------------------------------------------- marsmsarflg | 3,760,695 .7733469 .4186663 0 1 educsmsarflg | 3,760,695 .562755 .4960462 0 1 congenrflg | 3,760,695 .8206401 .3836535 0 1 nprevisrflg | 3,760,695 .8706665 .3355688 0 1 ethnicrflg | 3,760,695 .9334974 .8375066 0 2 -------------+--------------------------------------------------------- omapsrflg | 3,760,695 .7729654 .4189152 0 1 fmapsrflg | 3,760,695 .7729654 .4189152 0 1 marstoflg | 3,760,695 1 0 1 1 educstoflg | 3,760,695 1 0 1 1 lmpoflg | 3,760,695 1 0 1 1 -------------+--------------------------------------------------------- monpreoflg | 3,760,695 1 0 1 1 llboflg | 3,760,695 1 0 1 1 lfdoflg | 3,760,695 1 0 1 1 congenflg | 3,760,695 1 0 1 1 nprevisoflg | 3,760,695 1 0 1 1 -------------+--------------------------------------------------------- ethnicoflg | 3,760,695 .9402735 .8374091 0 2 omapsoflg | 3,760,695 1 0 1 1 fmapsoflg | 3,760,695 1 0 1 1 attend | 3,760,695 1.047815 .3396854 1 9 oterml20 | 3,760,695 12.55509 30.50074 0 99 -------------+--------------------------------------------------------- otermm20 | 3,760,695 12.33918 30.61947 0 99 omaps | 3,760,695 29.58666 38.73002 0 99 omapsr | 3,760,695 3.700928 .9481152 1 5 fmaps | 3,760,695 30.36451 38.31355 0 99 fmapsr | 3,760,695 4.128583 .6110168 1 5 -------------+--------------------------------------------------------- origm | 3,760,695 37.69934 41.38812 0 99 origf | 3,760,695 44.15964 43.09453 0 99 gestimp | 563,126 1 0 1 1 regnres | 3,760,695 2.607006 1.039183 0 4 regnocc | 3,760,695 2.610901 1.035644 1 4 -------------+--------------------------------------------------------- stoccfip | 0 cntocfip | 0 stresfip | 0 cntyrfip | 0 smsarfip | 0 -------------+--------------------------------------------------------- recwt | 3,760,695 1 0 1 1 nprev28 | 3,760,695 14.23786 6.890214 1 28 nprev12 | 3,760,695 7.384503 2.654334 1 12 stnatexp | 3,760,695 25.22849 15.31279 1 52 by Jean Roth , jroth@nber.org , 3 Jan 2016