| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $66,445 | $24,142 |
| 2016 | $68,950 | $23,144 |
| 2017 | $71,290 | $23,164 |
| 2018 | $71,290 | $20,393 |
| 2019 | $76,645 | $20,818 |
| 2020 | $79,370 | $23,543 |
| 2021* | $82,196 | $23,564 |
| 2022* | $85,122 | $23,585 |
| 2023* | $88,152 | $23,607 |
| 2024* | $91,290 | $23,628 |
| 2025* | $94,540 | $23,649 |
