| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $66,060 | $39,727 |
| 2016 | $68,464 | $39,935 |
| 2017 | $71,060 | $42,860 |
| 2018 | $71,060 | $39,427 |
| 2019 | $77,588 | $43,534 |
| 2020 | $78,274 | $44,220 |
| 2021* | $81,123 | $44,919 |
| 2022* | $84,076 | $45,628 |
| 2023* | $87,136 | $46,349 |
| 2024* | $90,308 | $47,082 |
| 2025* | $93,595 | $47,826 |