| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,516 | $23,516 |
| 2016 | $43,654 | $24,586 |
| 2017 | $44,756 | $23,732 |
| 2018 | $44,756 | $23,973 |
| 2019 | $48,877 | $24,182 |
| 2020 | $50,918 | $26,223 |
| 2021* | $53,046 | $26,490 |
| 2022* | $55,264 | $26,761 |
| 2023* | $57,574 | $27,034 |
| 2024* | $59,980 | $27,309 |
| 2025* | $62,487 | $27,588 |