Summary statistics for csts_chrgs2552_96_2005 dataset : by Jean Roth , jroth@nber.org , 6 Sep 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- provider | 0 prvdr_num | 0 fyb | 6,159 16497.68 108.4138 16345 16709 fybstr | 0 fye | 6,159 16848.36 118.831 16398 17105 -------------+--------------------------------------------------------- fyestr | 0 status | 0 costs | 5,280 8.45e+07 1.28e+08 1 2.06e+09 ip_charges | 6,155 1.49e+08 2.93e+08 1 5.50e+09 op_charges | 5,769 8.70e+07 1.39e+08 10 2.28e+09 by Jean Roth , jroth@nber.org , 6 Sep 2018