| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $32,820 | $23,086 |
| 2016 | $33,577 | $23,782 |
| 2017 | $34,468 | $24,948 |
| 2018 | $34,468 | $24,532 |
| 2019 | $36,093 | $25,636 |
| 2020 | $35,467 | $25,010 |
| 2021* | $36,286 | $25,763 |
| 2022* | $37,125 | $26,538 |
| 2023* | $37,982 | $27,337 |
| 2024* | $38,859 | $28,160 |
| 2025* | $39,757 | $29,008 |
