| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $59,706 | $30,176 |
| 2016 | $62,586 | $31,568 |
| 2017 | $63,138 | $31,071 |
| 2018 | $63,138 | $28,653 |
| 2019 | $67,731 | $30,771 |
| 2020 | $70,908 | $33,948 |
| 2021* | $74,234 | $35,513 |
| 2022* | $77,715 | $37,150 |
| 2023* | $81,360 | $38,863 |
| 2024* | $85,176 | $40,654 |
| 2025* | $89,171 | $42,529 |