Summary statistics for Rx_NE_LTI_NESRD_NOD_x_F68 variable in rxcoeff dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- Rx_NE_LTI_.. | 1 2.022 . 2.022 2.022 by Jean Roth , jroth@nber.org , 23 Mar 2017