| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $62,800 | $35,358 |
| 2016 | $65,503 | $35,082 |
| 2017 | $68,177 | $35,384 |
| 2018 | $68,177 | $33,486 |
| 2019 | $73,236 | $39,142 |
| 2020 | $75,732 | $41,638 |
| 2021* | $78,822 | $41,996 |
| 2022* | $82,038 | $42,357 |
| 2023* | $85,385 | $42,722 |
| 2024* | $88,869 | $43,089 |
| 2025* | $92,494 | $43,459 |