| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $65,380 | $26,113 |
| 2016 | $68,106 | $28,369 |
| 2017 | $71,050 | $30,934 |
| 2018 | $71,050 | $28,595 |
| 2019 | $77,490 | $30,816 |
| 2020 | $80,336 | $33,662 |
| 2021* | $83,686 | $36,570 |
| 2022* | $87,176 | $39,730 |
| 2023* | $90,811 | $43,163 |
| 2024* | $94,598 | $46,892 |
| 2025* | $98,542 | $50,943 |