Summary statistics for csts_chrgs2552_96_2009 dataset : by Jean Roth , jroth@nber.org , 6 Sep 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- provider | 0 prvdr_num | 0 fyb | 6,107 17957.21 107.1905 17806 18170 fybstr | 0 fye | 6,107 18313.69 114.986 17866 18627 -------------+--------------------------------------------------------- fyestr | 0 status | 0 costs | 5,450 1.04e+08 1.63e+08 7859 2.57e+09 ip_charges | 6,103 2.00e+08 4.00e+08 1 6.93e+09 op_charges | 5,685 1.40e+08 2.27e+08 29 3.26e+09 by Jean Roth , jroth@nber.org , 6 Sep 2018