| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $16,550 | $6,909 |
| 2016 | $17,250 | $7,212 |
| 2017 | $18,050 | $7,741 |
| 2018 | $18,050 | $7,246 |
| 2019 | $18,150 | $7,318 |
| 2020 | $16,096 | $5,264 |
| 2021* | $16,185 | $5,316 |
| 2022* | $16,274 | $5,369 |
| 2023* | $16,363 | $5,422 |
| 2024* | $16,453 | $5,476 |
| 2025* | $16,544 | $5,530 |
