| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $25,446 | $16,873 |
| 2016 | $27,558 | $15,523 |
| 2017 | $27,656 | $16,963 |
| 2018 | $27,656 | $19,571 |
| 2019 | $25,492 | $11,013 |
| 2020 | $26,311 | $11,832 |
| 2021* | $26,406 | $12,712 |
| 2022* | $26,501 | $13,658 |
| 2023* | $26,596 | $14,674 |
| 2024* | $26,692 | $15,766 |
| 2025* | $26,788 | $16,939 |
