Summary statistics for natl1968 dataset :

by Jean Roth , jroth@nber.org , 3 Jan 2016

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
    datayear |  1,750,782           8           0          8          8
     rectype |  1,750,782    1.179414    .3836988          1          2
    restatus |  1,750,782    1.205044    .4628826          1          3
    stateres |          0
     cntyres |          0
-------------+---------------------------------------------------------
     cityres |          0
    citrspop |          0
     smsares |          0
    metrores |          0
       frace |  1,750,782    1.721849    2.072638          1          9
-------------+---------------------------------------------------------
       mrace |  1,750,782    1.213314    .6490175          1          9
       crace |  1,750,782    1.212324     .610971          1          7
      crace2 |  1,750,782    1.168308    .3741394          1          2
      crace3 |  1,750,782    1.319998    .7217889          1          3
        csex |  1,750,782    1.486993    .4998309          1          2
-------------+---------------------------------------------------------
      birmon |  1,750,782    6.633794    3.427879          1         12
       dmage |  1,750,782    24.84856    5.782203         10         49
      mage36 |  1,750,782    24.84921    5.780903         14         49
       mage8 |  1,750,782    3.574558    1.191659          1          8
      mage12 |  1,750,782    7.374546    1.585234          1         12
-------------+---------------------------------------------------------
     dlivord |  1,750,782    2.567997    3.150599          1         99
     livord9 |  1,750,782    2.464731    1.725053          1          9
     livord3 |  1,750,782    1.988781    .8589101          1          3
    birattnd |  1,750,782    1.027921    .2378547          1          4
     dgestat |  1,750,782    49.31978    22.00945         17         99
-------------+---------------------------------------------------------
    gestat10 |  1,750,782    6.289439    1.644848          0          9
      dbirwt |  1,750,782    3283.266    688.4545        227       9999
     birwt12 |  1,750,782    7.041919    1.237823          1         12
      birwt3 |  1,750,782     1.92098    .2799873          1          3
      dlegit |  1,750,782    3.072218    3.132365          1          9
-------------+---------------------------------------------------------
     dplural |  1,750,782    1.020437     .143894          1          5
     plural2 |  1,750,782    1.020108    .1403684          1          2
    statenat |          0
     cntynat |          0

by Jean Roth , jroth@nber.org , 3 Jan 2016