Summary statistics for physn_othr_prtm_cnt variable in pos1999 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
p~r_prtm_cnt |     94,568    .0060965    .4799279          0      92.11

by Jean Roth , jroth@nber.org , 17 May 2017