| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $50,386 | $24,361 |
| 2016 | $51,992 | $24,682 |
| 2017 | $54,065 | $25,817 |
| 2018 | $54,065 | $24,999 |
| 2019 | $57,505 | $25,105 |
| 2020 | $59,445 | $27,045 |
| 2021* | $61,448 | $27,402 |
| 2022* | $63,519 | $27,764 |
| 2023* | $65,660 | $28,130 |
| 2024* | $67,872 | $28,501 |
| 2025* | $70,160 | $28,878 |