Summary statistics for csts_chrgs2552_96_2006 dataset : by Jean Roth , jroth@nber.org , 6 Sep 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- provider | 0 prvdr_num | 0 fyb | 6,155 16860.73 107.6562 16710 17074 fybstr | 0 fye | 6,155 17214.64 118.4598 16740 17439 -------------+--------------------------------------------------------- fyestr | 0 status | 0 costs | 5,176 9.18e+07 1.38e+08 1 2.22e+09 ip_charges | 6,151 1.62e+08 3.20e+08 1 6.01e+09 op_charges | 5,752 9.77e+07 1.56e+08 6 2.57e+09 by Jean Roth , jroth@nber.org , 6 Sep 2018