| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $32,847 | $19,467 |
| 2016 | $34,264 | $18,724 |
| 2017 | $34,700 | $15,808 |
| 2018 | $34,700 | $7,188 |
| 2019 | $37,299 | $16,274 |
| 2020 | $39,100 | $18,075 |
| 2021* | $40,785 | $17,385 |
| 2022* | $42,543 | $16,720 |
| 2023* | $44,377 | $16,082 |
| 2024* | $46,289 | $15,467 |
| 2025* | $48,284 | $14,877 |
