| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $65,906 | $37,058 |
| 2016 | $68,060 | $37,211 |
| 2017 | $70,302 | $36,047 |
| 2018 | $70,302 | $36,146 |
| 2019 | $75,002 | $31,980 |
| 2020 | $77,662 | $34,640 |
| 2021* | $80,217 | $34,734 |
| 2022* | $82,856 | $34,827 |
| 2023* | $85,582 | $34,921 |
| 2024* | $88,398 | $35,016 |
| 2025* | $91,306 | $35,110 |