| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $55,064 | $39,120 |
| 2016 | $57,090 | $40,592 |
| 2017 | $58,798 | $39,936 |
| 2018 | $58,798 | $41,645 |
| 2019 | $62,574 | $40,755 |
| 2020 | $64,842 | $43,023 |
| 2021* | $67,189 | $44,641 |
| 2022* | $69,622 | $46,319 |
| 2023* | $72,142 | $48,061 |
| 2024* | $74,753 | $49,868 |
| 2025* | $77,459 | $51,743 |