| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $39,200 | $23,597 |
| 2016 | $39,900 | $25,742 |
| 2017 | $41,370 | $24,138 |
| 2018 | $41,370 | $23,289 |
| 2019 | $41,320 | $27,693 |
| 2020 | $32,500 | $18,873 |
| 2021* | $32,500 | $18,209 |
| 2022* | $32,500 | $17,568 |
| 2023* | $32,500 | $16,949 |
| 2024* | $32,500 | $16,353 |
| 2025* | $32,500 | $15,777 |