| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $31,177 | $14,791 |
| 2016 | $33,444 | $15,265 |
| 2017 | $35,629 | $17,701 |
| 2018 | $35,629 | $16,891 |
| 2019 | $38,889 | $18,298 |
| 2020 | $39,768 | $19,177 |
| 2021* | $42,365 | $20,097 |
| 2022* | $45,131 | $21,062 |
| 2023* | $48,078 | $22,073 |
| 2024* | $51,218 | $23,133 |
| 2025* | $54,562 | $24,243 |
