Summary statistics for csts_chrgs2552_96_2004 dataset : by Jean Roth , jroth@nber.org , 6 Sep 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- provider | 0 prvdr_num | 0 fyb | 6,173 16132.82 109.0137 15979 16344 fybstr | 0 fye | 6,173 16482.08 120.6515 16054 16740 -------------+--------------------------------------------------------- fyestr | 0 status | 0 costs | 5,319 7.86e+07 1.20e+08 1 2.01e+09 ip_charges | 6,169 1.38e+08 2.81e+08 1 7.15e+09 op_charges | 5,791 7.73e+07 1.23e+08 1 1.89e+09 by Jean Roth , jroth@nber.org , 6 Sep 2018