Summary statistics for csts_chrgs2552_96_1999 dataset : by Jean Roth , jroth@nber.org , 6 Sep 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- provider | 0 prvdr_num | 0 fyb | 6,088 14306.63 109.8113 14153 14516 fybstr | 0 fye | 6,030 -976.7592 17966.46 -21914 14609 -------------+--------------------------------------------------------- fyestr | 0 status | 0 costs | 5,175 5.50e+07 8.08e+07 1 1.31e+09 ip_charges | 6,084 7.75e+07 1.43e+08 1 3.12e+09 op_charges | 5,742 3.78e+07 5.54e+07 2 6.42e+08 by Jean Roth , jroth@nber.org , 6 Sep 2018