Summary statistics for PHYSN_OTHR_PRTM_CNT variable in pos2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
P~R_PRTM_CNT |     37,813    .0120379    .5158778          0      74.29

by Jean Roth , jroth@nber.org , 19 Apr 2019