| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $36,540 | $29,414 |
| 2016 | $36,712 | $29,467 |
| 2017 | $35,340 | $28,611 |
| 2018 | $35,340 | $28,152 |
| 2019 | $37,024 | $30,922 |
| 2020 | $37,732 | $31,630 |
| 2021* | $37,909 | $31,687 |
| 2022* | $38,088 | $31,744 |
| 2023* | $38,267 | $31,801 |
| 2024* | $38,446 | $31,858 |
| 2025* | $38,627 | $31,916 |
