| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $42,370 | $27,053 |
| 2016 | $43,370 | $26,637 |
| 2017 | $44,730 | $26,493 |
| 2018 | $44,730 | $25,051 |
| 2019 | $47,670 | $27,267 |
| 2020 | $49,460 | $29,057 |
| 2021* | $51,013 | $28,900 |
| 2022* | $52,615 | $28,744 |
| 2023* | $54,267 | $28,589 |
| 2024* | $55,971 | $28,434 |
| 2025* | $57,728 | $28,281 |