| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $43,630 | $23,038 |
| 2016 | $45,480 | $21,183 |
| 2017 | $46,985 | $21,437 |
| 2018 | $46,985 | $24,843 |
| 2019 | $50,715 | $25,660 |
| 2020 | $52,945 | $27,890 |
| 2021* | $55,190 | $28,808 |
| 2022* | $57,530 | $29,755 |
| 2023* | $59,969 | $30,734 |
| 2024* | $62,512 | $31,745 |
| 2025* | $65,162 | $32,790 |