Summary statistics for csts_chrgs2552_10_2013 dataset : by Jean Roth , jroth@nber.org , 7 Mar 2019 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- provider | 0 prvdr_num | 0 fyb | 6,187 19418.44 107.6548 19267 19630 fybstr | 0 fye | 6,187 19774.61 114.303 19358 19996 -------------+--------------------------------------------------------- fyestr | 0 status | 0 costs | 5,054 1.29e+08 2.02e+08 116009 3.30e+09 ip_charges | 6,182 2.39e+08 4.99e+08 234 8.44e+09 op_charges | 5,661 2.05e+08 3.49e+08 36 5.68e+09 by Jean Roth , jroth@nber.org , 7 Mar 2019