Summary statistics for mdrfoithru2017_source_type dataset :

by Jean Roth , jroth@nber.org , 

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
mdr_report~y | 10,097,624     3426615     1918329      35405    7156368
seqsource_~e | 10,097,624    1.563401    .7758985          1          9
 source_type |  7,666,500    5.016059    5.467147          0         99
source_typ~r |          0

by Jean Roth , jroth@nber.org ,