Summary statistics for rn_drctr_cntrct_cnt variable in pos2007 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
rn_drctr_c~t |    117,712    .0014217    .0425942          0       4.61

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