Summary statistics for a8_c2_47 variable in hosp_rollup2552_96_2006 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_47 | 3,372 -214486.7 1948330 -6.00e+07 2.80e+07 by Jean Roth , jroth@nber.org , 21 Apr 2018