Summary statistics for l_1_hos_c1_9 variable in prds_hosp10_yr2013 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- l_1_hos_c1_9 | 1,830 .3269599 .2615666 .0006 8.1653 by Jean Roth , jroth@nber.org , 24 Aug 2018