medical.def

  ID YEAR MEDEXP INC AGE INSUR


   obs:  1000 (5 time series observations on 200 individuals 

   	 ID	= person identifier
   	 TIME	= year index
   	 MEDEXP = annual medical expenditure in hundreds of dollars (includes expenditure before government or insurance refunds and the full cost of prescription drugs)
   	 INC	= annual income in thousands of dollars
   	 AGE	= age in years
   	 INSUR	= 1 if individual i has private health insurance in year t and 0 otherwise.


    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
          ID |      1000       100.5    57.76319          1        200
        YEAR |      1000           3    1.414921          1          5
      MEDEXP |      1000       4.865    2.841276          0         13
         INC |      1000      73.571    18.60191         22        146
         AGE |      1000       46.42    13.76419         21         70
-------------+--------------------------------------------------------
       INSUR |      1000        .477    .4997206          0          1