| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,815 | $35,342 |
| 2016 | $55,186 | $34,800 |
| 2017 | $56,807 | $35,675 |
| 2018 | $56,807 | $34,030 |
| 2019 | $60,243 | $33,410 |
| 2020 | $61,813 | $34,980 |
| 2021* | $63,426 | $34,445 |
| 2022* | $65,082 | $33,918 |
| 2023* | $66,780 | $33,399 |
| 2024* | $68,523 | $32,888 |
| 2025* | $70,312 | $32,385 |
