| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $46,725 | $24,624 |
| 2016 | $48,150 | $23,922 |
| 2017 | $49,546 | $24,530 |
| 2018 | $49,546 | $24,070 |
| 2019 | $51,000 | $22,649 |
| 2020 | $51,475 | $23,124 |
| 2021* | $52,968 | $22,689 |
| 2022* | $54,504 | $22,263 |
| 2023* | $56,084 | $21,844 |
| 2024* | $57,711 | $21,434 |
| 2025* | $59,385 | $21,031 |
