Summary statistics for a_c1_98 variable in hosp_rollup2552_96_2003 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a_c1_98 | 1,589 1995272 1.23e+07 -145851 3.96e+08 by Jean Roth , jroth@nber.org , 12 Sep 2018