| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $63,456 | $24,889 |
| 2016 | $66,332 | $25,369 |
| 2017 | $69,464 | $27,445 |
| 2018 | $69,464 | $25,973 |
| 2019 | $74,248 | $25,635 |
| 2020 | $76,946 | $28,333 |
| 2021* | $80,432 | $28,880 |
| 2022* | $84,075 | $29,437 |
| 2023* | $87,884 | $30,005 |
| 2024* | $91,865 | $30,584 |
| 2025* | $96,026 | $31,175 |