| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $64,700 | $28,116 |
| 2016 | $66,850 | $28,138 |
| 2017 | $69,300 | $28,391 |
| 2018 | $69,300 | $27,554 |
| 2019 | $74,140 | $25,999 |
| 2020 | $76,480 | $28,339 |
| 2021* | $79,019 | $28,362 |
| 2022* | $81,643 | $28,384 |
| 2023* | $84,353 | $28,407 |
| 2024* | $87,154 | $28,430 |
| 2025* | $90,047 | $28,453 |
