| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $37,893 | $25,583 |
| 2016 | $39,845 | $27,926 |
| 2017 | $41,507 | $26,473 |
| 2018 | $41,507 | $27,357 |
| 2019 | $44,331 | $32,026 |
| 2020 | $45,683 | $33,378 |
| 2021* | $47,588 | $34,787 |
| 2022* | $49,572 | $36,255 |
| 2023* | $51,640 | $37,784 |
| 2024* | $53,793 | $39,379 |
| 2025* | $56,036 | $41,041 |
