Summary statistics for natl1969 dataset : by Jean Roth , jroth@nber.org , 3 Jan 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- datayear | 1,800,103 9 0 9 9 shipnum | 0 reparea | 0 rectype | 1,800,103 1.183027 .386689 1 2 restatus | 1,800,103 1.207528 .4620179 1 3 -------------+--------------------------------------------------------- stateres | 0 cntyres | 0 cityres | 0 citrspop | 0 smsares | 0 -------------+--------------------------------------------------------- metrores | 0 divres | 1,800,103 4.725643 2.485425 1 9 stsubres | 1,800,103 50.57838 25.19196 11 95 statenat | 0 cntynat | 0 -------------+--------------------------------------------------------- divocc | 1,800,103 4.727093 2.48555 1 9 stsubocc | 1,800,103 50.59124 25.19307 11 95 csex | 1,800,103 1.487093 .4998335 1 2 birattnd | 1,800,103 1.017714 .1893681 1 4 frace | 1,800,103 1.737888 2.100642 0 9 -------------+--------------------------------------------------------- mrace | 1,800,103 1.221959 .7059488 0 9 crace | 1,800,103 1.219119 .6577299 0 8 crace3 | 1,800,103 1.31935 .7204779 1 3 dmage | 1,800,103 24.73676 5.640532 10 49 mage36 | 1,800,103 11.73742 5.639182 1 36 -------------+--------------------------------------------------------- mage15 | 1,800,103 11.71419 3.36751 1 17 mage12 | 1,800,103 8.343879 1.58192 1 13 mage8 | 1,800,103 3.55089 1.163137 1 8 mage7 | 1,800,103 3.549946 1.159928 1 7 mage6 | 1,800,103 2.552853 1.154774 1 6 -------------+--------------------------------------------------------- nlbnl | 1,800,103 2.368236 8.21311 0 99 nlbnd | 1,800,103 2.608727 12.78728 0 99 nlbd | 1,800,103 2.927726 13.4309 0 99 dtotord | 1,800,103 3.395077 8.955528 1 99 totord9 | 1,800,103 2.594398 1.864236 1 9 -------------+--------------------------------------------------------- dlivord | 1,800,103 3.160728 8.506973 1 99 livord9 | 1,800,103 2.452494 1.746657 1 9 livord8 | 1,800,103 2.407298 1.614643 1 8 livord7 | 1,800,103 2.376846 1.530344 1 7 livord6 | 1,800,103 2.306046 1.37105 1 6 -------------+--------------------------------------------------------- livord3 | 1,800,103 1.631574 .4976095 1 3 flag77 | 11,343 1 0 1 1 dfage | 1,800,103 33.97651 20.74237 17 99 fage11 | 1,800,103 4.773441 2.29889 2 11 dbirwt | 1,800,103 3305.041 774.3429 227 9999 -------------+--------------------------------------------------------- birwt12 | 1,800,103 7.061701 1.264276 1 12 birwt3 | 1,800,103 1.925074 .2837635 1 3 birmon | 1,800,103 6.617098 3.438066 1 12 birday | 1,800,103 15.7676 8.915701 1 99 lmpmon | 1,800,103 31.71948 38.23478 1 99 -------------+--------------------------------------------------------- lmpday | 1,800,103 46.0731 38.30839 1 99 lmpyr | 0 dgestat | 1,800,103 37.54785 30.42782 0 99 gestat10 | 1,800,103 5.421956 3.591102 0 10 gestat3 | 1,800,103 1.555545 1.032663 0 3 -------------+--------------------------------------------------------- dmeduc | 1,800,103 40.98919 37.20212 0 99 meduc14 | 1,800,103 5.088521 4.293514 0 14 meduc6 | 1,800,103 1.918607 1.706215 0 6 dfeduc | 1,800,103 46.13638 38.46458 0 99 feduc14 | 1,800,103 5.675815 4.949834 0 14 -------------+--------------------------------------------------------- dlegit | 1,800,103 3.433176 3.276097 1 9 legit3 | 1,800,103 .7326281 .5746854 0 2 monprec | 0 mpre10 | 1,800,103 2.311261 2.500241 0 10 mpre6 | 0 -------------+--------------------------------------------------------- llbmon | 1,800,103 52.1782 38.33295 1 99 llbyr | 1,800,103 76.32273 10.38507 27 99 disllb | 1,800,103 515.9968 399.2059 0 999 isllb17 | 1,800,103 5.041073 6.526349 0 21 isllb10 | 1,800,103 2.605436 3.279602 0 10 -------------+--------------------------------------------------------- isllb8 | 1,800,103 2.120854 2.626881 0 8 lfdmon | 1,800,103 77.24006 17.69259 1 99 lfdyr | 1,800,103 79.69866 6.933851 0 99 fdflg | 1,800,103 .0578972 .2335491 0 1 dlfd | 1,800,103 778.7085 182.2596 0 999 -------------+--------------------------------------------------------- dterm | 1,800,103 528.6099 403.0317 0 999 term9 | 1,800,103 2.611729 3.179029 0 9 outcome | 1,800,103 .5529439 .7045477 0 3 congen | 1,800,103 .6738348 2.208557 0 8 legitstrflg | 1,800,103 .6636009 .4724774 0 1 -------------+--------------------------------------------------------- educstrflg | 1,800,103 .6293901 .4829683 0 1 lmprflg | 1,800,103 .7236308 .4472017 0 1 monprerflg | 1,800,103 .8052728 .3959907 0 1 llbrflg | 1,800,103 .7001599 .4581879 0 1 lfdrflg | 1,800,103 .7001599 .4581879 0 1 -------------+--------------------------------------------------------- legitsmsar~g | 1,800,103 .3780911 .4849107 0 1 educsmsarflg | 1,800,103 .3841225 .4863872 0 1 congenrflg | 1,800,103 .9162887 .2769545 0 1 legitstoflg | 1,800,103 .6654386 .471837 0 1 educstoflg | 1,800,103 .6282546 .483271 0 1 -------------+--------------------------------------------------------- lmpoflg | 1,800,103 .7248869 .4465714 0 1 monpreoflg | 1,800,103 .8065977 .3949657 0 1 llboflg | 1,800,103 .7001183 .4582061 0 1 lfdoflg | 1,800,103 .7001183 .4582061 0 1 congenflg | 1,800,103 .9168264 .2761445 0 1 by Jean Roth , jroth@nber.org , 3 Jan 2016