| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $45,350 | $28,375 |
| 2016 | $47,789 | $28,997 |
| 2017 | $49,961 | $30,136 |
| 2018 | $49,961 | $29,022 |
| 2019 | $52,574 | $30,179 |
| 2020 | $54,097 | $31,702 |
| 2021* | $56,553 | $32,948 |
| 2022* | $59,121 | $34,243 |
| 2023* | $61,805 | $35,588 |
| 2024* | $64,611 | $36,987 |
| 2025* | $67,544 | $38,441 |