| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $49,610 | $36,030 |
| 2016 | $50,498 | $43,368 |
| 2017 | $51,303 | N/A |
| 2018 | $51,303 | N/A |
| 2019 | $52,913 | $40,494 |
| 2020 | $48,013 | $35,594 |
| 2021* | $48,776 | $37,064 |
| 2022* | $49,552 | $38,595 |
| 2023* | $50,340 | $40,189 |
| 2024* | $51,140 | $41,849 |
| 2025* | $51,953 | $43,577 |