| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $43,404 | $27,779 |
| 2016 | $44,836 | $28,614 |
| 2017 | $46,316 | $28,834 |
| 2018 | $46,316 | $28,434 |
| 2019 | $49,258 | $29,056 |
| 2020 | $49,092 | $28,890 |
| 2021* | $50,712 | $29,112 |
| 2022* | $52,386 | $29,337 |
| 2023* | $54,114 | $29,563 |
| 2024* | $55,900 | $29,790 |
| 2025* | $57,745 | $30,020 |
