Summary statistics for miacc dataset :

by Jean Roth , jroth@nber.org , 18 Apr 2016

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     st_case |     37,976    278565.8    160092.5      10001     560152
        year |     37,976        1983           0       1983       1983
          a1 |     37,976    10.07755    10.67416          0         77
          a2 |     37,976    10.06849    10.67042          0         71
          a3 |     37,976    10.01419    10.65576          0         79
-------------+---------------------------------------------------------
          a4 |     37,976    10.15218    10.68548          0         75
          a5 |     37,976    10.15757    10.65527          0         71
          a6 |     37,976    10.12755    10.70532          0         71
          a7 |     37,976    10.00745    10.58627          0         71
          a8 |     37,976    10.02602    10.66886          0         89
-------------+---------------------------------------------------------
          a9 |     37,976    10.21037    10.71984          0         71
         a10 |     37,976    9.996076    10.59981          0         71

by Jean Roth , jroth@nber.org , 18 Apr 2016