| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,014 | $23,550 |
| 2016 | $42,394 | $24,372 |
| 2017 | $43,142 | $24,402 |
| 2018 | $43,142 | $22,506 |
| 2019 | $45,336 | $23,603 |
| 2020 | $46,303 | $24,570 |
| 2021* | $47,289 | $25,427 |
| 2022* | $48,297 | $26,315 |
| 2023* | $49,325 | $27,233 |
| 2024* | $50,376 | $28,184 |
| 2025* | $51,449 | $29,167 |
