Summary statistics for natl1983 dataset : by Jean Roth , jroth@nber.org , 3 Jan 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- datayear | 3,337,883 3 0 3 3 stresexp | 3,337,883 27.28988 14.67855 1 60 reparea | 0 rectype | 3,337,883 1.233487 .4230493 1 2 restatus | 3,337,883 1.260901 .4997983 1 4 -------------+--------------------------------------------------------- stateres | 0 cntyres | 0 cityres | 0 citrspop | 0 smsares | 0 -------------+--------------------------------------------------------- metrores | 0 divres | 3,337,883 4.84479 2.43018 0 9 stsubres | 3,337,883 51.88158 24.66728 0 95 statenat | 0 cntynat | 0 -------------+--------------------------------------------------------- divocc | 3,337,883 4.852721 2.425083 1 9 stsubocc | 3,337,883 51.96452 24.61012 11 95 csex | 3,337,883 1.487223 .4998368 1 2 birattnd | 3,337,883 1.023558 .2341917 1 4 frace | 3,337,883 2.099558 2.604844 0 9 -------------+--------------------------------------------------------- mrace | 3,337,883 1.237528 .8015936 0 9 crace | 3,337,883 1.228517 .699219 0 8 crace3 | 3,337,883 1.359888 .7442251 1 3 dmage | 3,337,883 25.46183 5.330178 10 49 mage36 | 3,337,883 12.46244 5.328788 1 36 -------------+--------------------------------------------------------- mage15 | 3,337,883 12.21989 3.210764 1 17 mage12 | 3,337,883 8.517837 1.505227 1 13 mage8 | 3,337,883 3.693098 1.105996 1 8 mage7 | 3,337,883 3.692786 1.104924 1 7 mage6 | 3,337,883 2.695471 1.09958 1 6 -------------+--------------------------------------------------------- nlbnl | 3,337,883 1.472505 7.08955 0 99 nlbnd | 3,337,883 .5362582 7.091497 0 99 nlbd | 3,337,883 .8100685 7.297276 0 99 dtotord | 3,337,883 2.81135 7.366691 1 99 totord9 | 3,337,883 2.294574 1.474219 1 9 -------------+--------------------------------------------------------- dlivord | 3,337,883 2.501175 7.079381 1 99 livord9 | 3,337,883 2.027931 1.286116 1 9 livord8 | 3,337,883 2.014033 1.224628 1 8 livord7 | 3,337,883 2.004286 1.18397 1 7 livord6 | 3,337,883 1.981389 1.109408 1 6 -------------+--------------------------------------------------------- livord3 | 3,337,883 1.584322 .5032677 1 3 dfage | 3,337,883 37.86137 24.44837 10 99 fage11 | 3,337,883 5.200397 2.535361 1 11 dbirwt | 3,337,883 3353.196 649.5459 227 9999 birwt12 | 3,337,883 7.194662 1.240425 1 12 -------------+--------------------------------------------------------- birwt3 | 3,337,883 1.933132 .2554357 1 3 pldel | 3,337,883 1.012801 .130648 1 9 dplural | 3,337,883 1.020946 .1462187 1 3 plural3 | 3,337,883 1.020946 .1462187 1 3 plural2 | 3,337,883 1.020509 .1417339 1 2 -------------+--------------------------------------------------------- birmon | 3,337,883 6.536868 3.415601 1 12 birday | 3,337,883 15.73312 8.788073 1 99 lmpmon | 3,337,883 9.937521 17.53696 1 99 lmpday | 3,337,883 32.12773 34.52166 1 99 lmpyr | 0 -------------+--------------------------------------------------------- dgestat | 3,337,883 41.94325 12.40172 17 99 gestat10 | 3,337,883 6.930053 1.527529 1 10 gestat3 | 3,337,883 1.951108 .3637485 1 3 dmeduc | 3,337,883 28.58909 33.71168 0 99 meduc14 | 3,337,883 9.539866 2.943401 1 14 -------------+--------------------------------------------------------- meduc6 | 3,337,883 3.768248 1.423384 1 6 dfeduc | 3,337,883 38.93054 39.52491 0 99 feduc14 | 3,337,883 10.51154 3.049566 1 14 dmar | 3,337,883 1.202996 .4308079 1 9 mar2 | 3,337,883 1.199595 .399696 1 2 -------------+--------------------------------------------------------- monprec | 0 mpre10 | 3,337,883 2.234575 2.002843 1 10 mpre6 | 3,337,883 1.869898 1.144851 1 6 llbmon | 3,337,883 43.81756 37.54466 1 99 llbyr | 3,337,883 79.66976 5.677032 9 99 -------------+--------------------------------------------------------- disllb | 3,337,883 431.0858 389.7972 0 999 isllb17 | 3,337,883 7.165042 7.315745 0 21 isllb10 | 3,337,883 3.637808 3.600691 0 10 isllb8 | 3,337,883 2.941916 2.869151 0 8 lfdmon | 3,337,883 69.68295 24.76817 1 99 -------------+--------------------------------------------------------- lfdyr | 3,337,883 77.87675 3.581322 1 99 lfdflg | 3,337,883 .1278748 .3339504 0 1 dlfd | 3,337,883 700.4351 257.2024 0 999 dterm | 3,337,883 420.7571 403.4588 0 999 term9 | 3,337,883 3.813604 3.351449 0 9 -------------+--------------------------------------------------------- outcome | 3,337,883 .8005886 .7148141 0 3 mplbir | 3,337,883 30.19216 16.26918 1 99 nprevis | 3,337,883 18.55756 25.60124 0 99 congen | 3,337,883 .0111547 .105025 0 1 marstrflg | 3,337,883 .9989311 .0326772 0 1 -------------+--------------------------------------------------------- educstrflg | 3,337,883 .824436 .3804488 0 1 lmprflg | 3,337,883 .9906812 .096083 0 1 monprerflg | 3,337,883 .9989311 .0326772 0 1 llbrflg | 3,337,883 .9104876 .285482 0 1 lfdrflg | 3,337,883 .9104876 .285482 0 1 -------------+--------------------------------------------------------- marsmsarflg | 3,337,883 .7439143 .4364698 0 1 educsmsarflg | 3,337,883 .5870161 .4923701 0 1 congenrflg | 3,337,883 .8795608 .3254745 0 1 nprevisrflg | 3,337,883 .9334518 .2492379 0 1 ethnicrflg | 3,337,883 .8585397 .8323131 0 2 -------------+--------------------------------------------------------- omapsrflg | 3,337,883 .8265056 .3786742 0 1 fmapsrflg | 3,337,883 .8265056 .3786742 0 1 marstoflg | 3,337,883 1 0 1 1 educstoflg | 3,337,883 1 0 1 1 lmpoflg | 3,337,883 1 0 1 1 -------------+--------------------------------------------------------- monpreoflg | 3,337,883 1 0 1 1 llboflg | 3,337,883 1 0 1 1 lfdoflg | 3,337,883 1 0 1 1 congenflg | 3,337,883 1 0 1 1 nprevisoflg | 3,337,883 1 0 1 1 -------------+--------------------------------------------------------- ethnicoflg | 3,337,883 .8634026 .8337203 0 2 omapsoflg | 3,337,883 1 0 1 1 fmapsoflg | 3,337,883 1 0 1 1 attend | 3,337,883 1.04898 .3903596 1 9 oterml20 | 3,337,883 13.45423 31.43011 0 99 -------------+--------------------------------------------------------- otermm20 | 3,337,883 13.26177 31.54046 0 99 omaps | 3,337,883 25.06072 35.53722 0 99 omapsr | 3,337,883 3.623599 .9216011 1 5 fmaps | 3,337,883 25.93756 35.16216 0 99 fmapsr | 3,337,883 4.063098 .600941 1 5 -------------+--------------------------------------------------------- origm | 3,337,883 41.75648 41.84776 0 99 origf | 3,337,883 47.73137 42.89899 0 99 gestimp | 548,596 1 0 1 1 regnres | 3,337,883 2.492499 .9991852 0 4 regnocc | 3,337,883 2.495746 .9958042 1 4 -------------+--------------------------------------------------------- stoccfip | 0 cntocfip | 0 stresfip | 0 cntyrfip | 0 smsarfip | 0 -------------+--------------------------------------------------------- recwt | 3,337,883 1.091357 .2881157 1 2 nprev28 | 3,337,883 13.0522 5.9692 1 28 nprev12 | 3,337,883 6.961608 2.398459 1 12 stnatexp | 3,337,883 27.3095 14.65593 1 52 by Jean Roth , jroth@nber.org , 3 Jan 2016