| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $37,190 | $25,964 |
| 2016 | $38,826 | $26,963 |
| 2017 | $40,560 | $27,776 |
| 2018 | $40,560 | $27,753 |
| 2019 | $44,291 | $29,392 |
| 2020 | $46,198 | $31,299 |
| 2021* | $48,231 | $32,504 |
| 2022* | $50,353 | $33,755 |
| 2023* | $52,568 | $35,055 |
| 2024* | $54,881 | $36,405 |
| 2025* | $57,296 | $37,806 |
