| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $33,050 | $22,702 |
| 2016 | $33,750 | $22,454 |
| 2017 | $34,500 | $22,301 |
| 2018 | $34,500 | $22,333 |
| 2019 | $36,000 | $22,734 |
| 2020 | $37,000 | $23,734 |
| 2021* | $37,821 | $23,767 |
| 2022* | $38,661 | $23,801 |
| 2023* | $39,519 | $23,834 |
| 2024* | $40,397 | $23,867 |
| 2025* | $41,293 | $23,901 |