| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $42,550 | $28,159 |
| 2016 | $45,650 | $32,552 |
| 2017 | $47,100 | $32,887 |
| 2018 | $47,100 | $30,570 |
| 2019 | $52,550 | $34,940 |
| 2020 | $54,800 | $37,190 |
| 2021* | $57,145 | $39,585 |
| 2022* | $59,591 | $42,134 |
| 2023* | $62,142 | $44,848 |
| 2024* | $64,801 | $47,736 |
| 2025* | $67,575 | $50,810 |