| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $64,804 | $39,264 |
| 2016 | $67,110 | $39,973 |
| 2017 | $67,775 | $39,987 |
| 2018 | $67,775 | $37,718 |
| 2019 | $70,026 | $39,514 |
| 2020 | $72,556 | $42,044 |
| 2021* | $74,965 | $42,805 |
| 2022* | $77,454 | $43,580 |
| 2023* | $80,025 | $44,369 |
| 2024* | $82,682 | $45,172 |
| 2025* | $85,427 | $45,989 |