Summary statistics for crdc_cthrtztn_lab_srvc_cd variable in pos2013 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
crdc_cthrt~d |     11,017    .1876191    .5165376          0          3

by Jean Roth , jroth@nber.org , 26 Jan 2016