Summary statistics for pos1989 dataset :

by Jean Roth , jroth@nber.org , 26 Jan 2016

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
    prov1720 |          0
    prov1680 |          0
    prov0605 |          0
    prov1565 |          0
    prov0100 |          0
-------------+---------------------------------------------------------
    prov0500 |          0
    stapdate |          0
    prov2810 |          0
   detapdate |          0
    hsqbdate |          0
-------------+---------------------------------------------------------
    category |          0
    prov2880 |          0
    prov0455 |          0
     titlevi |          0
     solvent |          0
-------------+---------------------------------------------------------
 termination |          0
    nocomply |          0
  compliance |          0
    prov0755 |     54,341    82.23853    359.6366          0      50200
    prov0740 |     53,759    111.4101    795.9759          0      77800
-------------+---------------------------------------------------------
    prov0475 |          0
    prov2720 |          0
    prov0115 |          0
    prov2905 |          0
       orbit |     73,394    1.440622    1.410817          0          3
-------------+---------------------------------------------------------
    prov2890 |          0
    prov2885 |          0
       state |          0
      county |          0
state_region |          0
-------------+---------------------------------------------------------
    prov1545 |          0
    prov1550 |          0
    prov1555 |          0
    psrocode |          0
     recsize |          0
-------------+---------------------------------------------------------
    authdate |          0
    prov1605 |          0
    prov0485 |          0
  pos_common |          0
  previnter1 |          0
-------------+---------------------------------------------------------
  previnter2 |          0
interchgdate |          0
   intertype |          0
   relatprov |          0
    xrefprov |          0
-------------+---------------------------------------------------------
  statuscode |          0
lasttransa~n |          0
 participate |     73,378    1.302679    .8631467          0          3
    facgroup |     73,394    2.510655    1.478112          1          9
    prov1725 |     73,394    5.197319    2.427436          1         10
-------------+---------------------------------------------------------
      ssamsa |          0
    ssamsasz |          0

by Jean Roth , jroth@nber.org , 26 Jan 2016