| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,654 | $33,068 |
| 2016 | $54,334 | $34,359 |
| 2017 | $55,864 | $34,405 |
| 2018 | $55,864 | $32,754 |
| 2019 | $59,258 | $35,812 |
| 2020 | $61,138 | $37,692 |
| 2021* | $63,076 | $39,162 |
| 2022* | $65,076 | $40,689 |
| 2023* | $67,138 | $42,276 |
| 2024* | $69,267 | $43,925 |
| 2025* | $71,463 | $45,638 |
