Summary statistics for natl1971 dataset : by Jean Roth , jroth@nber.org , 3 Jan 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- datayear | 1,781,774 1 0 1 1 shipnum | 0 reparea | 0 rectype | 1,781,774 1.192372 .3941636 1 2 restatus | 1,781,774 1.221878 .4857089 1 4 -------------+--------------------------------------------------------- stateres | 0 cntyres | 0 cityres | 0 citrspop | 0 smsares | 0 -------------+--------------------------------------------------------- metrores | 0 divres | 1,781,774 4.740387 2.464993 0 9 stsubres | 1,781,774 50.76772 25.01647 0 95 statenat | 0 cntynat | 0 -------------+--------------------------------------------------------- divocc | 1,781,774 4.756957 2.457893 1 9 stsubocc | 1,781,774 50.93943 24.93334 11 95 csex | 1,781,774 1.487372 .4998407 1 2 birattnd | 1,781,774 1.018398 .1949338 1 4 frace | 1,781,774 1.79372 2.177483 0 9 -------------+--------------------------------------------------------- mrace | 1,781,774 1.235961 .7273165 0 9 crace | 1,781,774 1.237136 .6962063 0 8 crace3 | 1,781,774 1.337133 .7352414 1 3 dmage | 1,781,774 24.55993 5.481801 10 49 mage36 | 1,781,774 11.56063 5.480375 1 36 -------------+--------------------------------------------------------- mage15 | 1,781,774 11.64143 3.399522 1 17 mage12 | 1,781,774 8.270811 1.597062 1 13 mage8 | 1,781,774 3.501659 1.134171 1 8 mage7 | 1,781,774 3.50091 1.131526 1 7 mage6 | 1,781,774 2.504162 1.125756 1 6 -------------+--------------------------------------------------------- nlbnl | 1,781,774 2.878114 10.50159 0 99 nlbnd | 1,781,774 3.145703 14.0825 0 99 nlbd | 1,781,774 3.276831 14.25219 0 99 dtotord | 1,781,774 3.791625 11.32734 1 99 totord9 | 1,781,774 2.526238 1.840966 1 9 -------------+--------------------------------------------------------- dlivord | 1,781,774 3.555981 10.9428 1 99 livord9 | 1,781,774 2.38719 1.7306 1 9 livord8 | 1,781,774 2.343944 1.596825 1 8 livord7 | 1,781,774 2.312838 1.504991 1 7 livord6 | 1,781,774 2.247994 1.349863 1 6 -------------+--------------------------------------------------------- livord3 | 1,781,774 1.626007 .509359 1 3 flag77 | 18,780 1 0 1 1 dfage | 1,781,774 34.17014 21.32313 10 99 fage11 | 1,781,774 4.758079 2.342415 1 11 dbirwt | 1,781,774 3303.807 677.5358 227 9999 -------------+--------------------------------------------------------- birwt12 | 1,781,774 7.08441 1.229079 1 12 birwt3 | 1,781,774 1.92617 .271098 1 3 dplural | 1,781,774 1.018395 .1367869 1 5 plural3 | 1,781,774 1.018378 .1364564 1 3 plural2 | 1,781,774 1.018088 .1332683 1 2 -------------+--------------------------------------------------------- birmon | 1,781,774 6.483741 3.445525 1 12 birday | 1,781,774 15.71271 8.827276 1 99 lmpmon | 1,781,774 31.06979 37.86546 1 99 lmpday | 1,781,774 46.20351 38.3266 1 99 lmpyr | 0 -------------+--------------------------------------------------------- dgestat | 1,781,774 37.58858 30.41489 0 99 gestat10 | 1,781,774 5.437088 3.592287 0 10 gestat3 | 1,781,774 1.558698 1.032053 0 3 dmeduc | 1,781,774 38.24411 36.40107 0 99 meduc14 | 1,781,774 5.350429 4.21343 0 14 -------------+--------------------------------------------------------- meduc6 | 1,781,774 2.016036 1.676302 0 6 dfeduc | 1,781,774 44.16352 38.23188 0 99 feduc14 | 1,781,774 6.027536 4.908588 0 14 dlegit | 1,781,774 3.37538 3.247049 1 9 legit3 | 1,781,774 .752399 .5840926 0 2 -------------+--------------------------------------------------------- monprec | 0 mpre10 | 1,781,774 2.195962 2.321222 0 10 mpre6 | 1,781,774 1.668987 1.363886 0 6 llbmon | 1,781,774 51.35699 38.27618 1 99 llbyr | 1,781,774 76.78104 9.482553 30 99 -------------+--------------------------------------------------------- disllb | 1,781,774 507.7372 398.3839 0 999 isllb17 | 1,781,774 5.189865 6.603729 0 21 isllb10 | 1,781,774 2.680122 3.317909 0 10 isllb8 | 1,781,774 2.178681 2.654358 0 8 lfdmon | 1,781,774 76.95342 17.95766 1 99 -------------+--------------------------------------------------------- lfdyr | 1,781,774 79.62016 6.604318 0 99 dlfd | 1,781,774 775.4194 185.8823 0 999 dterm | 1,781,774 520.1822 403.1067 0 999 term9 | 1,781,774 2.688395 3.206514 0 9 outcome | 1,781,774 .5812948 .7351091 0 3 -------------+--------------------------------------------------------- mplbir | 1,781,774 29.34557 15.96867 1 99 congen | 1,781,774 .7880231 2.365005 0 8 legitstrflg | 1,781,774 .6715992 .4696316 0 1 educstrflg | 1,781,774 .6713865 .4697093 0 1 lmprflg | 1,781,774 .7340768 .4418237 0 1 -------------+--------------------------------------------------------- monprerflg | 1,781,774 .8165424 .3870413 0 1 llbrflg | 1,781,774 .7357768 .4409188 0 1 lfdrflg | 1,781,774 .7114393 .4530933 0 1 legitsmsar~g | 1,781,774 .404356 .4907671 0 1 educsmsarflg | 1,781,774 .4178667 .4932081 0 1 -------------+--------------------------------------------------------- congenrflg | 1,781,774 .9003785 .2994948 0 1 legitstoflg | 1,781,774 .6749644 .4683883 0 1 educstoflg | 1,781,774 .6706715 .4699695 0 1 lmpoflg | 1,781,774 .7348586 .4414086 0 1 monpreoflg | 1,781,774 .8191505 .3848936 0 1 -------------+--------------------------------------------------------- llboflg | 1,781,774 .7359979 .4408005 0 1 lfdoflg | 1,781,774 .7108909 .4533488 0 1 congenflg | 1,781,774 .9031089 .2958095 0 1 by Jean Roth , jroth@nber.org , 3 Jan 2016