| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,586 | $39,317 |
| 2016 | $56,306 | $41,375 |
| 2017 | $57,997 | $41,298 |
| 2018 | $57,997 | $39,371 |
| 2019 | $60,940 | $38,217 |
| 2020 | $61,644 | $38,921 |
| 2021* | $63,493 | $38,847 |
| 2022* | $65,398 | $38,773 |
| 2023* | $67,360 | $38,700 |
| 2024* | $69,381 | $38,626 |
| 2025* | $71,462 | $38,553 |
