Summary statistics for tchnlgst_bs_ba_dgr_cnt variable in pos2017 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
tchnlgst_b~t |      1,539     .752963    3.101307          0         50

by Jean Roth , jroth@nber.org , 9 Jan 2018