| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $50,840 | $28,422 |
| 2016 | $52,650 | $28,959 |
| 2017 | $54,330 | $29,119 |
| 2018 | $54,330 | $28,824 |
| 2019 | $57,870 | $29,800 |
| 2020 | $59,580 | $31,510 |
| 2021* | $61,481 | $32,106 |
| 2022* | $63,442 | $32,712 |
| 2023* | $65,466 | $33,331 |
| 2024* | $67,554 | $33,961 |
| 2025* | $69,709 | $34,602 |