Summary statistics for mdrfoithru2015_type_of_report dataset : by Jean Roth , jroth@nber.org , Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- mdr_report~y | 6,398,641 2769331 1497486 10 5339614 seqtype_of~t | 6,398,641 1.285631 .592946 1 5 type_of_re~t | 6,398,641 8.274432 1.284622 6 9 type_of_re~r | 0 by Jean Roth , jroth@nber.org ,