| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $26,724 | $13,164 |
| 2016 | $27,688 | $13,261 |
| 2017 | $29,196 | $14,778 |
| 2018 | $29,196 | $21,403 |
| 2019 | $31,122 | $22,392 |
| 2020 | $31,750 | $23,020 |
| 2021* | $32,896 | $24,084 |
| 2022* | $34,084 | $25,196 |
| 2023* | $35,314 | $26,360 |
| 2024* | $36,589 | $27,578 |
| 2025* | $37,910 | $28,852 |
