Summary statistics for s3_2_c4_18 variable in prds_hosp10_yr2012 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_2_c4_18 | 222 1519685 3758398 -45606 3.42e+07 by Jean Roth , jroth@nber.org , 24 Aug 2018