Summary statistics for OCPTNL_THRPST_FLTM_CNT variable in pos2011 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- OCPT~LTM_CNT | 44,375 .3759621 2.943615 0 342.86 by Jean Roth , jroth@nber.org , 19 Apr 2019