| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,120 | $18,364 |
| 2016 | $42,170 | $20,215 |
| 2017 | $31,335 | $7,979 |
| 2018 | $31,335 | $7,865 |
| 2019 | $32,297 | $18,279 |
| 2020 | $33,259 | $19,241 |
| 2021* | $34,107 | $20,253 |
| 2022* | $34,977 | $21,318 |
| 2023* | $35,869 | $22,440 |
| 2024* | $36,783 | $23,620 |
| 2025* | $37,721 | $24,862 |
