| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $42,525 | $25,173 |
| 2016 | $43,832 | $25,772 |
| 2017 | $45,322 | $26,866 |
| 2018 | $45,322 | $25,461 |
| 2019 | $47,076 | $24,710 |
| 2020 | $48,126 | $25,760 |
| 2021* | $49,603 | $26,373 |
| 2022* | $51,126 | $27,001 |
| 2023* | $52,696 | $27,643 |
| 2024* | $54,314 | $28,301 |
| 2025* | $55,981 | $28,975 |
