| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $40,280 | $25,564 |
| 2016 | $44,726 | $29,354 |
| 2017 | $46,855 | $29,380 |
| 2018 | $46,855 | $28,583 |
| 2019 | $48,321 | $27,661 |
| 2020 | $46,886 | $26,226 |
| 2021* | $48,354 | $25,515 |
| 2022* | $49,867 | $24,824 |
| 2023* | $51,428 | $24,151 |
| 2024* | $53,038 | $23,497 |
| 2025* | $54,698 | $22,860 |
