Summary statistics for tchnlgst_bs_ba_dgr_cnt variable in pos2001 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
tchnlgst_b~t |     99,429    .0039331    .1221009          0         14

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