| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $47,840 | $23,435 |
| 2016 | $49,490 | $26,457 |
| 2017 | $50,820 | $25,418 |
| 2018 | $50,820 | $23,865 |
| 2019 | $54,520 | $26,058 |
| 2020 | $55,950 | $27,488 |
| 2021* | $57,455 | $28,997 |
| 2022* | $59,001 | $30,589 |
| 2023* | $60,588 | $32,268 |
| 2024* | $62,218 | $34,040 |
| 2025* | $63,891 | $35,909 |