| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $19,000 | $9,611 |
| 2016 | $19,000 | $10,445 |
| 2017 | $19,000 | $12,621 |
| 2018 | $19,000 | $14,038 |
| 2019 | $19,300 | $11,843 |
| 2020 | $19,300 | $11,843 |
| 2021* | $19,300 | $12,871 |
| 2022* | $19,300 | $13,988 |
| 2023* | $19,300 | $15,202 |
| 2024* | $19,300 | $16,522 |
| 2025* | $19,300 | $17,956 |