| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $46,070 | $24,493 |
| 2016 | $47,140 | $25,042 |
| 2017 | $48,674 | $24,221 |
| 2018 | $48,674 | $23,402 |
| 2019 | $52,176 | $25,506 |
| 2020 | $54,054 | $27,384 |
| 2021* | $55,811 | $27,997 |
| 2022* | $57,625 | $28,625 |
| 2023* | $59,497 | $29,266 |
| 2024* | $61,431 | $29,921 |
| 2025* | $63,428 | $30,592 |