Summary statistics for paynoc dataset : by Jean Roth , jroth@nber.org , 5 Feb 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- druggeneri~e | 0 dosage | 0 paymentlimit | 159 132.698 377.4566 .01 2998.358 notes | 0 fileyear | 159 2010.541 4.22731 2005 2018 -------------+--------------------------------------------------------- filemonth | 159 6.735849 1.829619 1 10 by Jean Roth , jroth@nber.org , 5 Feb 2018