| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $23,548 | $16,981 |
| 2016 | $24,368 | $16,621 |
| 2017 | $25,139 | $18,060 |
| 2018 | $25,139 | $17,245 |
| 2019 | $27,071 | $18,246 |
| 2020 | $27,071 | $18,246 |
| 2021* | $27,926 | $18,246 |
| 2022* | $28,809 | $18,246 |
| 2023* | $29,719 | $18,246 |
| 2024* | $30,658 | $18,246 |
| 2025* | $31,627 | $18,246 |