| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,887 | $41,541 |
| 2016 | $55,264 | $43,769 |
| 2017 | $54,552 | $43,799 |
| 2018 | $54,552 | $48,096 |
| 2019 | $56,495 | $45,168 |
| 2020 | $59,121 | $47,794 |
| 2021* | $61,226 | $50,356 |
| 2022* | $63,405 | $53,055 |
| 2023* | $65,663 | $55,899 |
| 2024* | $68,000 | $58,895 |
| 2025* | $70,421 | $62,051 |
