| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $45,212 | $28,008 |
| 2016 | $45,391 | $25,169 |
| 2017 | $47,488 | $26,334 |
| 2018 | $47,488 | $27,412 |
| 2019 | $50,362 | $26,774 |
| 2020 | $51,346 | $27,758 |
| 2021* | $52,347 | $28,779 |
| 2022* | $53,368 | $29,839 |
| 2023* | $54,409 | $30,937 |
| 2024* | $55,470 | $32,075 |
| 2025* | $56,551 | $33,255 |
