Summary statistics for adr_vndr_cd variable in hcris2552_96_2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
 adr_vndr_cd |      6,202     3.85021    .3568946          3          4

by Jean Roth , jroth@nber.org , 31 Aug 2018