Summary statistics for adm_prem_amt_yr variable in mcbsatc2013 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
adm_prem_a~r |     13,924     1.47867    .8419897          1          3

by Jean Roth , jroth@nber.org , 24 May 2016