| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $48,078 | $29,919 |
| 2016 | $49,216 | $29,759 |
| 2017 | $51,202 | $31,956 |
| 2018 | $51,202 | $29,835 |
| 2019 | $55,508 | $32,476 |
| 2020 | $56,300 | $33,268 |
| 2021* | $57,634 | $34,080 |
| 2022* | $59,000 | $34,911 |
| 2023* | $60,399 | $35,763 |
| 2024* | $61,830 | $36,636 |
| 2025* | $63,295 | $37,530 |