Summary statistics for a8_c2_29 variable in hosp_rollup2552_96_2001 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- a8_c2_29 | 619 -540957.3 1785252 -1.63e+07 1.09e+07 by Jean Roth , jroth@nber.org , 9 Sep 2018