| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $58,394 | $38,543 |
| 2016 | $60,462 | $40,820 |
| 2017 | $62,482 | $40,731 |
| 2018 | $62,482 | $37,905 |
| 2019 | $67,156 | $39,924 |
| 2020 | $69,386 | $42,154 |
| 2021* | $71,703 | $44,401 |
| 2022* | $74,098 | $46,767 |
| 2023* | $76,573 | $49,260 |
| 2024* | $79,131 | $51,886 |
| 2025* | $81,774 | $54,651 |