Summary statistics for cstratm variable in nhamcsed2014 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     cstratm |     23,844    3.10e+07     9974010   2.01e+07   4.04e+07

by Jean Roth , jroth@nber.org , 11 Apr 2017