Summary statistics for g_c1thru4_19 variable in prds_hosp10_yr2012 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- g_c1thru4_19 | 3,493 2.34e+07 7.19e+07 -1745790 1.94e+09 by Jean Roth , jroth@nber.org , 24 Aug 2018