| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $31,345 | $20,413 |
| 2016 | $32,220 | $19,236 |
| 2017 | $36,760 | $24,530 |
| 2018 | $36,760 | $25,157 |
| 2019 | $39,620 | $25,292 |
| 2020 | $40,565 | $26,237 |
| 2021* | $41,697 | $26,909 |
| 2022* | $42,860 | $27,598 |
| 2023* | $44,056 | $28,304 |
| 2024* | $45,285 | $29,029 |
| 2025* | $46,549 | $29,772 |
