| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $49,393 | $22,091 |
| 2016 | $50,514 | $22,733 |
| 2017 | $39,773 | $11,626 |
| 2018 | $39,773 | $11,245 |
| 2019 | $41,842 | $11,634 |
| 2020 | $46,043 | $15,835 |
| 2021* | $47,088 | $16,296 |
| 2022* | $48,157 | $16,770 |
| 2023* | $49,250 | $17,258 |
| 2024* | $50,368 | $17,760 |
| 2025* | $51,512 | $18,277 |