| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $43,666 | $30,072 |
| 2016 | $44,896 | $31,204 |
| 2017 | $46,474 | $32,352 |
| 2018 | $46,474 | $31,595 |
| 2019 | $49,634 | $32,466 |
| 2020 | $51,314 | $34,146 |
| 2021* | $53,048 | $35,403 |
| 2022* | $54,841 | $36,705 |
| 2023* | $56,695 | $38,056 |
| 2024* | $58,611 | $39,457 |
| 2025* | $60,592 | $40,909 |
