Summary statistics for clia_lab_classification_cd_1 variable in posclia2018 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
clia_lab_c~1 |    504,763    .2052448    1.043885          0         10

by Jean Roth , jroth@nber.org , 15 Feb 2019