Summary statistics for mentl_hlth_srvc_prtm_cnt variable in pos2013 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
ment~rtm_cnt |     38,155    .0060529    .2310571          0       33.6

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