Summary statistics for adr_vndr_cd variable in hcris2552_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
 adr_vndr_cd |      6,380     3.25768    .6677548          2          4

by Jean Roth , jroth@nber.org , 6 Sep 2018