| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $40,684 | $21,717 |
| 2016 | $42,000 | $21,557 |
| 2017 | $42,980 | $21,922 |
| 2018 | $42,980 | $19,637 |
| 2019 | $46,650 | $22,782 |
| 2020 | $47,890 | $24,022 |
| 2021* | $49,164 | $24,428 |
| 2022* | $50,472 | $24,841 |
| 2023* | $51,814 | $25,261 |
| 2024* | $53,192 | $25,688 |
| 2025* | $54,607 | $26,122 |