| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $54,860 | $22,783 |
| 2016 | $55,710 | $27,765 |
| 2017 | $57,836 | $29,498 |
| 2018 | $57,836 | $29,470 |
| 2019 | $61,166 | $30,358 |
| 2020 | $62,074 | $31,266 |
| 2021* | $63,036 | $32,207 |
| 2022* | $64,013 | $33,177 |
| 2023* | $65,005 | $34,175 |
| 2024* | $66,013 | $35,204 |
| 2025* | $67,036 | $36,263 |