| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $20,152 | $11,985 |
| 2016 | $20,951 | $12,583 |
| 2017 | $22,351 | $13,612 |
| 2018 | $22,351 | $13,371 |
| 2019 | $25,825 | $15,546 |
| 2020 | $27,825 | $17,546 |
| 2021* | $29,684 | $18,981 |
| 2022* | $31,667 | $20,534 |
| 2023* | $33,782 | $22,214 |
| 2024* | $36,039 | $24,031 |
| 2025* | $38,446 | $25,996 |
