| 2015 | 2016 | 2017 | 2015-2016 growth rate | 2016-2017 growth rate |
Medical income | 733,522,530.7 | 914,981,291.4 | 1,017,646,037 | 24.74% | 11.22% |
Medical expenditure | 677,826,529.9 | 811,466,929.1 | 932,921,362.9 | 19.72% | 14.97% |
balance | 55,696,000.8 | 103,514,362.3 | 84,724,673.93 | 85.86% | −18.15% |
The average outpatient cost per day | 336.85 | 363.4 | 375.54 | 7.88% | 3.34% |
(drugs) | 172.2 | 186.29 | 178.8 | 8.18% | −4.02% |
The average inpatient daily cost per bed | 1225.28 | 1380.66 | 1444.71 | 12.68% | 4.64% |
(drugs) | 604.8 | 671.66 | 595.87 | 11.05% | −11.28% |