| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $68,060 | $33,697 |
| 2016 | $70,496 | $35,614 |
| 2017 | $72,980 | $34,387 |
| 2018 | $72,980 | $28,733 |
| 2019 | $78,654 | $30,216 |
| 2020 | $81,283 | $32,845 |
| 2021* | $84,144 | $34,540 |
| 2022* | $87,106 | $36,322 |
| 2023* | $90,172 | $38,196 |
| 2024* | $93,346 | $40,167 |
| 2025* | $96,632 | $42,240 |