Summary statistics for tchnlgst_bs_ba_dgr_cnt variable in pos2000 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
tchnlgst_b~t |     96,987    .0036712    .1158231          0         14

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