Summary statistics for natl1979 dataset : by Jean Roth , jroth@nber.org , 3 Jan 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- datayear | 3,184,421 9 0 9 9 shipnum | 0 reparea | 0 rectype | 3,184,421 1.23124 .4216253 1 2 restatus | 3,184,421 1.260136 .5033831 1 4 -------------+--------------------------------------------------------- stateres | 0 cntyres | 0 cityres | 0 citrspop | 0 smsares | 0 -------------+--------------------------------------------------------- metrores | 0 divres | 3,184,421 4.738597 2.402 0 9 stsubres | 3,184,421 50.76095 24.39321 0 95 statenat | 0 cntynat | 0 -------------+--------------------------------------------------------- divocc | 3,184,421 4.750704 2.395452 1 9 stsubocc | 3,184,421 50.88566 24.31967 11 95 csex | 3,184,421 1.487375 .4998407 1 2 birattnd | 3,184,421 1.020459 .2160508 1 4 frace | 3,184,421 2.053481 2.542466 0 9 -------------+--------------------------------------------------------- mrace | 3,184,421 1.247507 .8141257 0 9 crace | 3,184,421 1.231424 .6798633 0 8 crace3 | 3,184,421 1.359762 .7498417 1 3 dmage | 3,184,421 24.90941 5.242077 10 49 mage36 | 3,184,421 11.91009 5.240592 1 36 -------------+--------------------------------------------------------- mage15 | 3,184,421 11.91611 3.31365 1 17 mage12 | 3,184,421 8.374018 1.539259 1 13 mage8 | 3,184,421 3.58201 1.089125 1 8 mage7 | 3,184,421 3.581666 1.087888 1 7 mage6 | 3,184,421 2.584733 1.081999 1 6 -------------+--------------------------------------------------------- nlbnl | 3,184,421 1.561137 7.581687 0 99 nlbnd | 3,184,421 .6375307 7.733122 0 99 nlbd | 3,184,421 .9942417 8.686952 0 99 dtotord | 3,184,421 3.019477 8.751356 1 99 totord9 | 3,184,421 2.283234 1.519367 1 9 -------------+--------------------------------------------------------- dlivord | 3,184,421 2.622227 7.746272 1 99 livord9 | 3,184,421 2.05212 1.342578 1 9 livord8 | 3,184,421 2.034976 1.26989 1 8 livord7 | 3,184,421 2.022676 1.220713 1 7 livord6 | 3,184,421 1.995532 1.134958 1 6 -------------+--------------------------------------------------------- livord3 | 3,184,421 1.583528 .5054845 1 3 dfage | 3,184,421 36.81814 24.00998 10 99 fage11 | 3,184,421 5.050988 2.514398 1 11 dbirwt | 3,184,421 3349.252 670.2207 227 9999 birwt12 | 3,184,421 7.181114 1.241119 1 12 -------------+--------------------------------------------------------- birwt3 | 3,184,421 1.932594 .2590172 1 3 pldel | 3,184,421 1.012259 .1501098 1 9 dplural | 3,184,421 1.020011 .1424485 1 3 plural3 | 3,184,421 1.020011 .1424485 1 3 plural2 | 3,184,421 1.01967 .138863 1 2 -------------+--------------------------------------------------------- birmon | 3,184,421 6.602958 3.420186 1 12 birday | 3,184,421 15.75252 8.795205 1 99 lmpmon | 3,184,421 18.08906 30.64512 1 99 lmpday | 3,184,421 37.36996 37.67511 1 99 lmpyr | 0 -------------+--------------------------------------------------------- dgestat | 3,184,421 55.51853 26.4737 17 99 gestat10 | 3,184,421 7.713194 1.838853 1 10 gestat3 | 3,184,421 2.203814 .5406311 1 3 dmeduc | 3,184,421 27.48765 33.00507 0 99 meduc14 | 3,184,421 9.317434 2.951692 1 14 -------------+--------------------------------------------------------- meduc6 | 3,184,421 3.659906 1.429701 1 6 dfeduc | 3,184,421 37.5016 38.9964 0 99 feduc14 | 3,184,421 10.33132 3.114579 1 14 dmar | 3,184,421 4.056384 3.78853 1 9 mar2 | 3,184,421 1.10809 .3104945 1 2 -------------+--------------------------------------------------------- monprec | 0 mpre10 | 3,184,421 2.303183 2.078955 1 10 mpre6 | 3,184,421 1.921747 1.186864 1 6 llbmon | 3,184,421 45.34924 37.83175 1 99 llbyr | 3,184,421 78.3268 7.096127 38 99 -------------+--------------------------------------------------------- disllb | 3,184,421 447.14 392.4052 0 999 isllb17 | 3,184,421 7.350647 7.503996 0 21 isllb10 | 3,184,421 3.729628 3.694466 0 10 isllb8 | 3,184,421 3.012766 2.942465 0 8 lfdmon | 3,184,421 70.68752 23.20857 1 99 -------------+--------------------------------------------------------- lfdyr | 3,184,421 77.27966 3.673768 1 99 dlfd | 3,184,421 710.7724 241.4907 0 999 dterm | 3,184,421 452.0097 406.816 0 999 term9 | 3,184,421 3.880058 3.462924 0 9 outcome | 3,184,421 .8199965 .7879923 0 3 -------------+--------------------------------------------------------- mplbir | 3,184,421 30.04314 15.90596 1 99 nprevis | 3,184,421 25.85001 33.84515 0 99 marstrflg | 3,184,421 .6312714 .4824602 0 1 educstrflg | 3,184,421 .8343982 .3717229 0 1 lmprflg | 3,184,421 .9021602 .2970979 0 1 -------------+--------------------------------------------------------- monprerflg | 3,184,421 .9941955 .0759659 0 1 llbrflg | 3,184,421 .8894323 .3135961 0 1 lfdrflg | 3,184,421 .8894323 .3135961 0 1 marsmsarflg | 3,184,421 .3576817 .4793178 0 1 educsmsarflg | 3,184,421 .5220773 .4995124 0 1 -------------+--------------------------------------------------------- congenrflg | 3,184,421 .8669256 .3396552 0 1 nprevisrflg | 3,184,421 .8545921 .3525117 0 1 ethnicrflg | 3,184,421 .5368006 .6720256 0 2 omapsrflg | 3,184,421 .7568362 .4289933 0 1 fmapsrflg | 3,184,421 .746243 .4351602 0 1 -------------+--------------------------------------------------------- marstoflg | 3,184,421 1 0 1 1 educstoflg | 3,184,421 1 0 1 1 lmpoflg | 3,184,421 1 0 1 1 monpreoflg | 3,184,421 1 0 1 1 llboflg | 3,184,421 1 0 1 1 -------------+--------------------------------------------------------- lfdoflg | 3,184,421 1 0 1 1 congenflg | 3,184,421 1 0 1 1 nprevisoflg | 3,184,421 1 0 1 1 ethnicoflg | 3,184,421 .5329289 .6703023 0 2 omapsoflg | 3,184,421 1 0 1 1 -------------+--------------------------------------------------------- fmapsoflg | 3,184,421 1 0 1 1 attend | 3,184,421 1.045022 .4287662 1 9 oterml20 | 3,184,421 20.24954 36.90497 0 99 otermm20 | 3,184,421 20.02783 36.95932 0 99 omaps | 3,184,421 32.32334 40.19652 0 99 -------------+--------------------------------------------------------- omapsr | 3,184,421 3.802635 .943728 1 5 fmaps | 3,184,421 33.92765 40.16058 0 99 fmapsr | 3,184,421 4.172277 .6314005 1 5 origm | 3,184,421 55.60715 40.2929 0 99 origf | 3,184,421 59.37058 39.93021 0 99 -------------+--------------------------------------------------------- recwt | 3,184,421 1.099037 .2987111 1 2 nprev28 | 3,184,421 14.25297 7.168329 1 28 nprev12 | 3,184,421 7.338205 2.709968 1 12 by Jean Roth , jroth@nber.org , 3 Jan 2016