| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $55,810 | $28,641 |
| 2016 | $57,358 | $29,553 |
| 2017 | $58,996 | $30,738 |
| 2018 | $58,996 | $28,162 |
| 2019 | $62,522 | $28,700 |
| 2020 | $63,154 | $29,332 |
| 2021* | $64,903 | $29,977 |
| 2022* | $66,701 | $30,637 |
| 2023* | $68,549 | $31,311 |
| 2024* | $70,448 | $32,000 |
| 2025* | $72,399 | $32,704 |
