Summary statistics for pdp2014 dataset : by Jean Roth , jroth@nber.org , 14 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- state | 0 companyname | 0 planname | 0 benefittype | 0 zerodollar~o | 0 -------------+--------------------------------------------------------- monthlydru~m | 1,666 54.43679 32.65205 3.3 174.7 annualdrug~e | 1,666 155.2095 152.6063 0 310 typeofaddi~g | 0 contractid | 0 planid | 0 -------------+--------------------------------------------------------- benefittyp~l | 0 summarysta~g | 1,561 3.085842 .6824246 1.5 4.5 summarysta~r | 0 by Jean Roth , jroth@nber.org , 14 Apr 2016