| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $28,750 | $16,448 |
| 2016 | $30,100 | $16,643 |
| 2017 | $31,140 | $17,880 |
| 2018 | $31,140 | $18,272 |
| 2019 | $33,204 | $19,331 |
| 2020 | $34,314 | $20,441 |
| 2021* | $35,501 | $21,614 |
| 2022* | $36,730 | $22,855 |
| 2023* | $38,000 | $24,167 |
| 2024* | $39,315 | $25,554 |
| 2025* | $40,676 | $27,021 |