| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $36,964 | $23,781 |
| 2016 | $38,670 | $25,942 |
| 2017 | $39,528 | $24,372 |
| 2018 | $39,528 | $26,598 |
| 2019 | $44,201 | $32,741 |
| 2020 | $46,903 | $35,443 |
| 2021* | $49,070 | $38,665 |
| 2022* | $51,337 | $42,179 |
| 2023* | $53,709 | $46,014 |
| 2024* | $56,190 | $50,196 |
| 2025* | $58,786 | $54,759 |