| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $51,900 | $28,728 |
| 2016 | $54,150 | $28,892 |
| 2017 | $56,750 | $25,526 |
| 2018 | $56,750 | $22,569 |
| 2019 | $61,970 | $21,115 |
| 2020 | $64,470 | $23,615 |
| 2021* | $67,268 | $22,094 |
| 2022* | $70,187 | $20,671 |
| 2023* | $73,234 | $19,340 |
| 2024* | $76,412 | $18,095 |
| 2025* | $79,728 | $16,929 |