| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $31,830 | $22,786 |
| 2016 | $32,850 | $22,757 |
| 2017 | $33,550 | $23,855 |
| 2018 | $33,550 | $22,905 |
| 2019 | $35,510 | $24,143 |
| 2020 | $36,550 | $25,183 |
| 2021* | $37,621 | $26,268 |
| 2022* | $38,723 | $27,401 |
| 2023* | $39,858 | $28,582 |
| 2024* | $41,026 | $29,813 |
| 2025* | $42,228 | $31,098 |
