Summary statistics for midrvacc dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     st_case |        464      430236    135.8253     430001     430470
        year |        464        2004           0       2004       2004
          a1 |        464    6.109914    9.245557          0         39
          a2 |        464    6.422414    9.506984          0         39
          a3 |        464    6.243534    9.278215          0         43
-------------+---------------------------------------------------------
          a4 |        464    6.443966    9.419036          0         41
          a5 |        464    6.172414    9.300387          0         39
          a6 |        464    6.747845    9.757037          0         46
          a7 |        464    6.517241    9.697572          0         39
          a8 |        464    6.209052     9.59242          0         39
-------------+---------------------------------------------------------
          a9 |        464    6.394397    9.528045          0         44
         a10 |        464    6.232759    9.550238          0         39

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