| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $45,260 | $26,936 |
| 2016 | $46,493 | $27,444 |
| 2017 | $47,456 | $27,729 |
| 2018 | $47,456 | $26,365 |
| 2019 | $51,463 | $28,118 |
| 2020 | $53,576 | $30,231 |
| 2021* | $55,033 | $30,802 |
| 2022* | $56,530 | $31,385 |
| 2023* | $58,068 | $31,978 |
| 2024* | $59,647 | $32,582 |
| 2025* | $61,270 | $33,198 |