| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $16,500 | $5,193 |
| 2016 | $17,000 | $10,129 |
| 2017 | $18,500 | $11,157 |
| 2018 | $18,500 | $10,173 |
| 2019 | $19,600 | $5,604 |
| 2020 | $19,700 | $5,704 |
| 2021* | $20,297 | $5,806 |
| 2022* | $20,912 | $5,909 |
| 2023* | $21,546 | $6,014 |
| 2024* | $22,198 | $6,121 |
| 2025* | $22,871 | $6,230 |